WOMEN'S DISEASES
Ed Friedlander, M.D., Pathologist
scalpel_blade@yahoo.com

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Welcome to Ed's Pathology Notes, placed here originally for the convenience of medical students at my school. You need to check the accuracy of any information, from any source, against other credible sources. I cannot diagnose or treat over the web, I cannot comment on the health care you have already received, and these notes cannot substitute for your own doctor's care. I am good at helping people find resources and answers. If you need me, send me an E-mail at scalpel_blade@yahoo.com Your confidentiality is completely respected. No texting or chat messages, please. Ordinary e-mails are welcome.

DoctorGeorge.com is a larger, full-time service. There is also a fee site at www.afraidtoask.com.


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Freely have you received, give freely With one of four large boxes of "Pathguy" replies.

I'm still doing my best to answer everybody. Sometimes I get backlogged, sometimes my E-mail crashes, and sometimes my literature search software crashes. If you've not heard from me in a week, post me again. I send my most challenging questions to the medical student pathology interest group, minus the name, but with your E-mail where you can receive a reply.

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I am presently adding clickable links to images in these notes. Let me know about good online sources in addition to these:

Freely have you received, freely give. -- Matthew 10:8. My site receives an enormous amount of traffic, and I'm still handling dozens of requests for information weekly, all as a public service.

Pathology's modern founder, Rudolf Virchow M.D., left a legacy of realism and social conscience for the discipline. I am a mainstream Christian, a man of science, and a proponent of common sense and common kindness. I am an outspoken enemy of all the make-believe and bunk that interfere with peoples' health, reasonable freedom, and happiness. I talk and write straight, and without apology.

Throughout these notes, I am speaking only for myself, and not for any employer, organization, or associate.

Special thanks to my friend and colleague, Charles Wheeler M.D., pathologist and former Kansas City mayor. Thanks also to the real Patch Adams M.D., who wrote me encouragement when we were both beginning our unusual medical careers.

If you're a private individual who's enjoyed this site, and want to say, "Thank you, Ed!", then what I'd like best is a contribution to the Episcopalian home for abandoned, neglected, and abused kids in Nevada:

I've spent time there and they are good. Write "Thanks Ed" on your check.

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Especially if you're looking for information on a disease with a name that you know, here are a couple of great places for you to go right now and use Medline, which will allow you to find every relevant current scientific publication. You owe it to yourself to learn to use this invaluable internet resource. Not only will you find some information immediately, but you'll have references to journal articles that you can obtain by interlibrary loan, plus the names of the world's foremost experts and their institutions.

Alternative (complementary) medicine has made real progress since my generally-unfavorable 1983 review. If you are interested in complementary medicine, then I would urge you to visit my new Alternative Medicine page. If you are looking for something on complementary medicine, please go first to the American Association of Naturopathic Physicians. And for your enjoyment... here are some of my old pathology exams for medical school undergraduates.

I cannot examine every claim that my correspondents share with me. Sometimes the independent thinkers prove to be correct, and paradigms shift as a result. You also know that extraordinary claims require extraordinary evidence. When a discovery proves to square with the observable world, scientists make reputations by confirming it, and corporations are soon making profits from it. When a decades-old claim by a "persecuted genius" finds no acceptance from mainstream science, it probably failed some basic experimental tests designed to eliminate self-deception. If you ask me about something like this, I will simply invite you to do some tests yourself, perhaps as a high-school science project. Who knows? Perhaps it'll be you who makes the next great discovery!

Our world is full of people who have found peace, fulfillment, and friendship by suspending their own reasoning and simply accepting a single authority that seems wise and good. I've learned that they leave the movements when, and only when, they discover they have been maliciously deceived. In the meantime, nothing that I can say or do will convince such people that I am a decent human being. I no longer answer my crank mail.

This site is my hobby, and I do not accept donations, though I appreciate those who have offered to help.

During the fifteen years my site has been online, it's proved to be one of the most popular of all internet sites for undergraduate physician and allied-health education. It is so well-known that I'm not worried about borrowers. I never refuse requests from colleagues for permission to adapt or duplicate it for their own courses... and many do. So, fellow-teachers, help yourselves. Don't sell it for a profit, don't use it for a bad purpose, and at some time in your course, mention me as author and KCUMB as my institution. Drop me a note about your successes. And special thanks to everyone who's helped and encouraged me, and especially the people at KCUMB for making it possible, and my teaching assistants over the years.

Whatever you're looking for on the web, I hope you find it, here or elsewhere. Health and friendship!

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More of Ed's Notes: Ed's Medical Terminology Page

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Lab Problem
Quackery
Alternative Medicine (current)
Preventing "F"'s: For Teachers!
Medical Dictionary

Courtesy of CancerWEB

LEARNING OBJECTIVES:

QUIZBANK
    Vulva and vagina: Women's problems 13-17, 26-35, 61-62, 67-68, 72
    Cervix: Women's problems 80-93
    Endometrium / Myometrium: Women's problems 1-12, 18, 37-59, 64-66, 69-71, 73-75, 77-79, 94-101
    Oviduct: Women's problems 24-25,
    Ovary: Women's problems 76, 102-128
    Mother and Child: Fetus and pregnancy (all)


Picasso, "Mother and Child"

If I were asked to what the singular prosperity and growing strength of [the Americans] ought mainly to be attributed, I should reply, "To the superiority of their women".

Never try to impress a woman because if you do, you'll have to keep up that standard for the rest of your life.

Not from Adam's brain, to have the same mind as him, nor from Adam's foot, to be subordinate to him, but from the rib next to Adam's heart, to love and be loved by him.

Let men tremble to win the hand of a woman, unless they win also with it the utmost passion of her heart.

          -- Nathaniel Hawthorne, "The Scarlet Letter"

If that this thing we call the world
By chance on atoms was begot
Which though in ceaseless motion twirled
Yet weary not
How doth it prove
Thou art so fair and I in love.

          -- John Hall, 1646

Global views on women's health: Sci. Am. 271(2): Aug., 1994. Still good reading, especially for anyone offering easy, wrong answers to the world's problems.

In sub-Saharan Africa, one woman in 16 dies in childbirth, compared with one woman in about 5000 in the developed world (Br. Med. J. 326: 567, 2003). British aid workers among the poor were able to cut mortality in pregnancy and delivery by about 40% with very little effort or expense (BMJ 336: 145, 2008).

Special thanks to Dr. Tony Racela for the wonderful kodachromes. You may find them here.

Cytopathology
Photo Library of Pathology
U. of Tokushima

Female
Photo Library of Pathology
U. of Tokushima

Female
Taiwanese pathology site
Good place to go to practice

Reproductive
Surgical Pathology Atlas
Nice photos, hard-core

Archive of Histologic Images
of Gynecologic & Breast Path
Greek, minimal commentary

Female Reproductive Tract Images
University of Washington
Pictures and comments

Gynecologic and Breast Pathology
Photomicrograph collection
In Portuguese

Reproductive
Utah cases for path students
Juliana Szakacs MD

Reproductive
Photos, explanations, and quiz
Indiana U.

GYN Pathology
Photos by Tony Racela MD (Thanks!)
Notes by Ed

Female
Iowa Virtual Microscopy
Have fun

Female
First Section
Chaing Mi, Thailand

Female
Second Section
Chaing Mi, Thailand

Female
Third Section
Chaing Mi, Thailand

Tulane Pathology Course
Great for this unit
Exact links are always changing

Women
Great pathology images
Indiana Med School

Webpath
Female

Female Histology
Ed's Histology Notes

Female Reproductive
Brown Digital Pathology
Some nice cases

Dgital Atlas of Gynecologic Pathology
Meenakshi Singh, MD
Outstanding resource

Gynecologic Pathology
Path photos with labels
Ohio State

GYN pathology lecture notes
U Penn Med School
Some good pictures


{47710} human female
{15787} normal internal female genitalia

Normal

Normal female internal organs
WebPath
Sorry, no caption just now

Normal female internal organs

WebPath

Normal female internal organs

WebPath

The pathology of the human female presents a few special problems.

You remember the embryology.

You remember the anatomy and physiology. Here are a few common points of confusion.

We have already covered infectious diseases. Here is a review of the major infections of the female genital system, adapted from "Big Robbins".

HERPES SIMPLEX II


{14134} herpes simplex of vulva, patient
{06017} herpes simplex infection, pap smear
{25909} herpes simplex infection, pap smear

Herpes simlex of the vulva

Yutaka Tsutsumi MD

MOLLUSCUM CONTAGIOSUM


{27023} molluscum contagiosum, histology

HUMAN PAPILLOMA VIRUS (HPV)

CHLAMYDIA TRACHOMATIS


{11562} chlamydia, pap smear
{25911} chlamydia infection, pap smear

Chlamydia in vacuoles
Pap smear
Wikimedia Commons

Chlamydia of the cervix

Yutaka Tsutsumi MD

GONORRHEA

HEMOPHILUS DUCREYI

TREPONEMA PALLIDUM (syphilis)


{25539} chancre of vulva, gross (syphilis)
{25545} condylomata lata, vulva (syphilis)
{25546} condylomata lata, vulva (syphilis)

MYCOBACTERIUM TUBERCULOSIS


{26585} tuberculosis of oviduct, low power
{26591} tuberculosis of oviduct, high power
{26627} tuberculosis of oviduct, high power

CALYMMATOBACTERIUM

GARDNERELLA


{08370} Gardnerella vaginalis on Pap smear (these aren't outstanding examples of "clue cells")
{25908} Gardnerella vaginalis infection, good "clue cell"

Clue cell

Tom Demark's Site

CANDIDA:

TRICHOMONAS: Vulva, vagina, cervix: Trichomonas vulvovaginitis

Trichomonas

Yutaka Tsutsumi MD

Vulva

Female -- inflammation
From Chile
In Spanish

Vulva
Nice case photos
Charam M. Ramnani MD

Vulva
"Pathology Outlines"
Nat Pernick MD

NON-NEOPLASTIC DISORDERS


{49364} acute vulvitis

    BARTHOLIN GLANDS on either side of the vaginal introitus are prone to acute infection by ordinary bacteria, chlamydia, or gonorrhea. They can resolve, leaving the duct obstructed, and a cyst can form. You'll learn how to marsupialize (i.e., make a pouch) these on rotations.

    Distinguishing vulvar cysts:

    • Bartholin gland: Stratified or transitional epithelium

    • Gartner duct (Wolffian remnant): One layer of non-mucinous epithelium

    • Mucin gland cyst: One layer of mucinous epithelium


{27119} Bartholin gland cyst, vulva

    SKENE'S GLANDS, on either side of the urethra, can also become inflamed, especially by gonorrhea.

    * VESTIBULAR ADENITIS is a poorly-understood inflammatory process at the entry to the vagina. The glands are inflamed and very painful. They may be excised surgically for a cure.

    SKIN DISEASES including lichen simplex, psoriasis, lichen planus, vitiligo, and familial pemphigoid, are very familiar on the vulva.

    Sometimes the epidermis simply undergoes hyperplasia, usually without anaplasia. It thickens ("acanthosis"), and develops extra keratin ("hyperkeratosis"). We call this VULVAR HYPERPLASIA. (This is a cancer risk if an only if there is some anaplasia.) It is not clear to me where this begins and lichen simplex chronicus leaves off.

    LICHEN SCLEROSUS ("chronic atrophic vulvitis") is a mysterious process in which a band of loose, pale-staning, homogeneousouse collagen forms underneath the epidermis, which is thinned and maybe has a hydropic basal layer. The skin turns gray and parchment-like or cigaret-paper-like and becomes itchy. It can occur at any age. Although there is no anaplasia, a few percent turn malignant.

      It's now clear that both vulvar hyperplasia and lichen sclerosus are caused by genetic mutations in the epidermis, though these have not yet caused anaplasia (Gyn. Onc. 77: 1717, 2000).

      * Of course, lichen sclerosus in a child has gotten parents hauled into court, where misguided zealots say that it is "proof of child abuse": Br. Med. J. 320: 331, 2000.

      Lichen sclerosus review: Lancet 353: 1777, 1999. Topical glucocorticoids seem to work better than topical sex steroids. Today, lasers are being used with good results (Derm. Surg. 30: 1148, 2004).


{27110} lichen sclerosis of vulva, histology

BENIGN TUMORS

    * PAPILLARY HIDRADENOMA is an intraductal papilloma of the breast, only in the vulva along the embryonic milk like.

    MUCOSAL POLYPS are skin tags, fibrous nodules covered with normal epithelium.

    CONDYLOMA ACUMINATUM is the large, usually multiple warts that can occur on the vulva, perianal region, and (less often) the vagina and cervix.

      Microscopically, the pathologist sees a branching fibrous stalk with a thickened epithelium exhibiting these features of HPV infection:

      • hyperkeratosis (i.e., extra keratin)
      • parakeratosis (i.e., the cells on the top retain their nuclei)
      • koilocytes -- cells with dark, wrinkled nuclei (from all those extra copies of the viral genome) and a perinuclear clear zone (where HPV is being made -- "koilos" means "hollow")

{49365} condyloma acuminatum of vulva, gross (HPV)
{27113} condyloma acuminatum of vulva, histology (HPV)
{06026} HPV effect ("koilocytes") in pap smear from cervix
{11470} HPV effect ("koilocytes") in pap smear from cervix

Severe dysplasia of the cervix
HPV-16
Yutaka Tsutsumi MD

Condyloma acuminatum
HPV-6
Yutaka Tsutsumi MD

HPV koilocytes
Cervix biopsy
KU Collection

HPV koilocytes
Cervix biopsy
KU Collection

HPV-16
Bowenoid papulosis
Yutaka Tsutsumi MD

CIN3
Cervix premalignancy
Wikimedia Commons

      Remember HPV strains 6 and 11 as causes of condyloma acuminatum (and its giant variant, "verrucous carcinoma"). Remember HPV 16 and 18 (also 31, 33, and 35) as causes of ordinary, deadly carcinoma; if strains 16 or 18 produces a wart, it is likely to be flat rather than tree-like. A woman may have several strains.

        * "Who has what strain?" In preparation for tomorrow's studies of the efficacy of the vaccine, the Saskatchewan pathologists find that HPV-16's still the commonest, that there's a LOT of HPV-31 and not much HPV-18. Stay tuned (Arch. Path. Lab. Med. 132: 54, 2008).

    * Leave the diagnosis of such entities as "aggressive angiomyxoma", "angiomyofibroblastoma", and "angiofibroma" to us.

CARCINOMA OF THE VULVA

    Most vulvar cancers are squamous cell carcinomas, with adenocarcinomas, melanomas, and basal cell carcinoma being less common. (The latter are unlikely to be caused by sunlight; they "just happen" -- have a high index of suspicion).


{25666} melanoma of vulva, gross

    Most squamous carcinomas are caused by HPV, and are preceded by dysplasia and carcinoma in situ ("vulvar intraepithelial neoplasia"; "vulvar intraepithelial lesion" is better), which is analogous to the lesions in the cervix. A physician may notice the premalignant lesions and excise them before cancer develops.

      Imiquimod, the immune modulator, for vulvar intra-epithelial neoplasia: NEJM 358: 1465, 2008. Usually a good result; often clears even the HPV.

    Squamous cell carcinomas not caused by HPV usually arise in lichen sclerosus or idiopathic hyperkeratosis. These are more aggressive.

    * Pathologists distinguish a host of subtypes of vulvar squamous carcinomas, including keratinizing (most common), basaloid, spindle cell, warty, and verrucous. Don't worry about these for now.


{24592} squamous cell carcinoma of vulva, gross
{25664} squamous cell carcinoma of vulva, gross
{25665} squamous cell carcinoma of vulva, gross
{27005} squamous cell carcinoma of vulva, histology
{27008} squamous cell carcinoma of vulva, histology
{25662} carcinoma in situ of vulva, gross
{25663} carcinoma in situ of vulva, gross

    EXTRAMAMMARY PAGET'S DISEASE is mucin-rich cancer cells growing within the epidermis of the vulva or perineum.

      It presents as a red, itchy rash. We don't know exactly where the cancer cells come from. Unlike in breast, there is seldom an underlying solid cancer. The pathologist will see tumor cells in the epidermis, as in the breast. They present clear cytoplasm that will stain for some sort of mucin.

      Local excision should be curative. The pathologist will do frozen sections to help see if the margins are free. Even without excision, the lesion is likely to remain stable for a long time.


{11499} Paget's disease of the vulva, gross
{08903} Paget's disease of the vulva, histology
{08906} Paget's disease of the vulva, histology

* CHILD SEXUAL ABUSE

    You'll learn on rotations how to detect child sexual abuse. The best work was done in the 1990's after the McMartin preschool ritual abuse fiasco -- much of it (to her great credit) by the physician whose overcall led to this absurd trial.

    A lot of abuse, sexual and non-sexual, goes on, and you need to be alert. And please remember the importance of knowing your stuff, and the dangers of a wrong diagnosis either way. Especially, be alert for fads -- if something doesn't make sense (i.e., the Marietta Higgs claims), don't believe it. Even Am. J. Clin. Path. 123: S119, 2005 showcased how rampant the false-positive diagnosis of child abuse has become, and how devastating the impact is.

    You already know that (1) good medicine involves differential diagnosis and objectivity; (2) health care professionals are not inerrant, (3) patients are not always "good historians", and (4) stories that change in big ways over time are usually lies. From Salem's witchcraft to McMartin and after, it's clear you can eventually get a kid to say anything in court. My job would be much easier if everybody knew all this.

    As "the pathology guy", I've had several courtesy cases involving allegations of child sexual abuse. In the majority, I've told the attorney to have a heart-to-heart with the guilty defendant. I have seen fine work by physicians and sex-abuse nurse examiners (SANE).

    However, I've also had cases that show medical ignorance/arrogance and politics at their worst.

    • A 5 year old girl with chickenpox and nonspcific vulvovaginitis has a few gram-negative intracellular diplococci on swab, just as do many women. Culture and PCR for gonorrhea are negative. The pediatrician insists it was gonorrhea. My testimony wins the case for the defense.
    • A SANE nurse reports that bands at the edge of the hymen are suspicious for abuse, even though it is established that they are a normal anatomic variant. A letter and some articles from me ends this.
    • A nurse describes classic tinea cruris and says it is herpes. A letter from me ends the confusion.
    • A SANE nurse describes the white line that many women have running from the rear rim back toward the anus as a healed laceration proving past violent rape. The girl was a teen who told preposterous stories (for example, escaping by jumping from a window in a crowded Japanese city, no witnesses or police report). A letter from me along with photocopies from anatomy books gets a "thanks very much" and I hear no more.
    • A SANE nurse does culposcopy on a child who has apparently died of SIDS and mistakes putrefaction for bruising. Strangely, the local medical examiner agrees, though on the slide it is obviously putrefaction with clostridia and the blood is still in the dilated vessels. My testimony is excluded from consideration after I give it because I am not trained as a SANE nurse examiner, and the other children are taken from the family. Because of bizarre local politics, no other pathologist will touch the case.
    • A SANE nurse examiner reports that erythema in an unhygienic child with intertrigo supports her mother's claim that she was fondled nine months earlier. A letter from me seems to settle this.
    • A severely handicapped child with holoprosencephaly passes impacted feces "the size of tangerines". A local physician interested in child protection states that sodomy must also have occurred. A letter from me enables the prosecutor to drop the charges.
    • A man imprisoned in the USA in 1991 on a SANE nurse's testimony, relying primarily on the already-discredited Marietta Higgs test, asks me to help. I give him a letter and the scientific references, but his appeal is denied.
    • A SANE nurse mistakes the edge of a mound and a fold for notches. The pictures were "lost" but suddenly appear 90 minutes before I take the stand. After a series of very strange events, the defendant gets life in prison.
    • A SANE nurse mistakes the classic heart-shaped variant of the hymen opening for proof of abuse. The girl "revealed past sexual abuse" by her father when the divorce proceedings got really nasty. (I'm sorry... this is common and everybody in the field recognizes that at least some of these kids are coached to lie.) My testimony gets the charges dropped by the judge and a big "thank you" from a man facing life in prison.
    What is most disturbing about these cases is that it's essentially impossible to find a clinician willing to testify on behalf of an accused child molester -- it would be bad for business. It seems to me that this is an area where pathologists can help.

Vagina

Normal vagina with cervix

WebPath

Vagina
"Pathology Outlines"
Nat Pernick MD

NON-NEOPLASTIC LESIONS

    Girls exposed in utero to diethylstilbestrol (DES) often have glands in the upper vagina. These appear as red bumps against the normally-pink mucosa. They may look like endocervical glands with squamous metaplasia, or like endometrial glands / oviduct without stroma. These turn cancerous in fewer only about 1 of 700 of affected girls, but when this happens it is devastating.


{27050} vaginal adenosis (DES exposure in utero), histology

    The only common non-iatrogenic birth defect is a septate vagina, from failure of the mullerian ducts to fuse. There will also be a double uterus.

    The only common non-infectious, non-neoplastic, acquired lesion of the vagina is a Gartner duct cyst, from the Wolffian duct remnants.

Enterobius vermicularis in vagina

Yutaka Tsutsumi MD

Bacteria on vaginal smears
Rogues' gallery
Yutaka Tsutsumi MD

CANCER OF THE VAGINA

    SQUAMOUS CELL CARCINOMA is rare, and caused by HPV. This arises in the setting of dysplasia ("intraepithelial neoplasia"; "squamous intraepithelial lesion") that may have been visible.

    Melanomas are thankfully uncommon, but do occur sporadically.

    Melanoma of the vagina
    Pittsburgh Pathology Cases

    ADENOCARCINOMA of the vagina arises from the glands of girls exposed to DES, usually in their teens. Fortunately, only one in about 1000 of girls exposed in this way get cancer, but the impact is devastating. The cells are glycogen-rich, hence the name "clear cell adenocarcinoma".

    Clear cell carcinoma
    Vagina -- DES exposure
    WebPath Case of the Week

    EMBRYONAL RHABDOMYOSARCOMA, in its form of "sarcoma botryoides", is a common cancer of young children.

      The sarcoma contains strap- or tadpole-like cross-striated rhabdomyoblasts, especially dense in the "cambium layer" beneath the epithelium. They are locally destructive and can metastasize late. Surgery and chemotherapy usually bring about a cure.

    * There are many other rare tumors. Don't worry about these just now.

    Remember the lymphatic drainage. Cancer in the lower two-thirds of the vagina metastasizes to the inguinal lymph nodes. Cancer of the upper third metastasizes to the iliac nodes.

Cervix


{08914} normal histology of uterine cervix (endocervix is left, ectocervix is right)
{10271} normal ectocervix histology
{10274} normal endocervix histology
{36059} normal endocervical cells, pap smear

Cervix I
From Chile
In Spanish

Cervix II
From Chile
In Spanish

Normal cervix

WebPath

Normal cervical squamous epithelium

WebPath

Cervix
"Pathology Outlines"
Nat Pernick MD

INFLAMMATION

    All adult women have some inflammatory cells in the endocervical canal. This is to be expected, given the abundant bacteria that thrive on the glycogen in this area.

    Obviously herpes, gonorrhea, and chlamydia will produce inflammation. Especially if you see a lot of lymphocytes with germinal centers, think of chlamydia.

Chronic cervicitis

WebPath

NON-TUMORS

    NABOTHIAN CYSTS are endocervical glands that have become plugged "by the inflammation", and fill with mucus. Most women have a few of these.

    ENDOCERVICAL FIBROEPITHELIAL POLYPS are fibrous nubbins covered with epithelium, hanging out of the cervical os. They act as a wick, drawing bacteria into the endocervix and endometrial cavity. They are easily cured with curettage.


{39991} endocervical polyp, gross

    * LAMINAR HYPERPLASIA of the glands is quite common and poorly-understood. The glands are slender but branch.

    MICROGLANDULAR HYPERPLASIA results from progesterone stimulation of the endocervix (i.e., pregnancy, old-fashioned contraceptive pills). The glands are abundant and have only a lacy stroma between them, along with many neutrophils.

      * Future pathologists: Don't mistake the scrambled pattern and enlarged nuclei for adenocarcinoma.

{27137} cervix, micro-glandular hyperplasia, histology

CANCER OF THE CERVIX (Lancet 361: 2217, 2003; Ob. Gyn. 107: 1152, 2006)

Cervical Cancer
Text and pictures
From "Big Robbins"

General Cytopathology
Johns Hopkins
A work in progress

Pap Smears
Chinese Pathologists
Includes a quiz

Cytopathology gallery
International Agency for Research on Cancer
Huge site

{09755} normal cervical pap smear (do you know the cell types?)

    Worldwide, cancer of the cervix is the #2 cancer killer of women, second only to breast cancer. Often women die during their reproductive life. Ther are about 190,000 deaths yearly (Am. J. Ob. Gyn. 189(s4): S37, 2003). In some of the poor nations, it is still the #1 cancer killer of women.

    In the US, there are presently around 10,000 new cases of invasive cancer yearly, and almost 4000 deaths. The elderly, the poor, and especially those who are not routinely screened are by far the most common victims (Cancer 101: 1051, 2004).

    In the US, the pap smear technique has greatly reduced a woman's risk of dying of the disease; as recently as the 1950's, it was as common a killer as breast cancer is today.

      You'll learn on rotations about how to perform a pap smear, and what the reports look like, and how smears are categorized and followed-up.

      "Low grade SIL" (squamous intraepithelial lesion) usually corresponds to mild dysplasia / CIN I, or a flat or exophyic condyloma. "High grade SIL" usually corresponds to moderate/severe dysplasia (CIN II/III) or carcinoma in situ.

      Fun to know: The average is around 10,000 cells on a routine pap smear, and 5000 on one of the newer liquid thin-prep smears.

    The vast majority (more than 80%) of cancers of the cervix are squamous cell carcinomas caused by HPV. Long before HPV was understood, we knew cancer of the cervix to be a sexually transmitted disease, with the great risk factors being the number of male sexual partners, and the number of previous female partners that the husband had. Update on HPV and cervical cancer: Lancet 370: 890, 2007.

    Other possible risk factor include smoking (still discussed: JAMA 285: 2995, 2001) and having an uncircumcised husband (seems to be due to circumcision protecting him from HPV).

    The virulence factor is the E6 and E7 oncogenes, which differ for low-risk and high-risk HPV strains. (See Am. J. Path. 153: 1741, 1998; Cancer 83: 2346, 1998; lots more since. These bind p53 and Rb gene products. This is a favorite question to tell who really knows basic medical science. Finding a virulence factor is proof of causation -- it has replaced Koch's / Henle's postulates.)

    Update on HPV and cancer of the cervix: Lancet 370: 890, 2007. Around 1 infected woman in 10 will get at least premalignancy.

    DYSPLASIA OF THE CERVIX ("cervical intraepithelial neoplasia", today "cervical intraepithelial lesion") can exist for years or decades before invasive squamous cancer happens. (And of course, usually it never happens. But nobody wants to leave these lesions alone.) Or it can progress very rapidly.

      You are already familiar with the concept of dysplasia and intraepithelial neoplasia. Here are some guidelines for applying the older "CIN" system, from mildest to most severe. A pathologist can tell on pap smear, and confirm on biopsy; the latter is more precise as long as you get the right spot (which is made easier by the fact that CIN doesn't stain as well as normal cervix with iodine ("Schiller test"), and will turn white on application of acetic acid, the acetowhite test, done during colposcopy).

        CIN I: Koilocytes only: Perhaps a condyloma acuminatum or a flat wart. Or perhaps there is simply squamous metaplasia of the endocervix. Maybe some atypical cells in the lower third. (the old "mild dysplasia").

        CIN II: Plenty of atypical cells in the lower portions, normal maturation toward the surface. (The old "moderate dysplasia" and "severe dysplasia").

          * You'll hear an old story that "dysplasia can regress and carcinoma in situ can't." This is ultimately un-testable nowadays, but the NIH finally did a triage study -- maybe 40% of CIN 2's will regress, especially if HPV-16 is not present, CIN III's won't regress. See Ob. Gyn 113: 18, 2009.

        CIN III: The cells no longer mature as they reach the surface. (The old "carcinoma in situ").


{11789} dysplasia of uterine cervix, histology
{11789} cervix, dysplasia, histology
{41963} cervix, dysplasia, histology
{25939} cervix, dysplasia, pap smear
{27101} cervix, dysplasia, pap smear
{27104} cervix, dysplasia, pap smear
{11790} severe dysplasia of uterine cervix, histology

Dysplasia.
HPV -- trust me.
WebPath Photo

Cervix with dysplasia

WebPath

Dysplasia on a pap smear

WebPath

Squamous cell carcinoma of the cervix

WebPath

Cervix with dysplasia

WebPath

Squamous cell carcinoma of the cervix

WebPath

Squamous cell carcinoma of the cervix

WebPath

Squamous cell carcinoma of the cervix

WebPath

Squamous cell carcinoma of the cervix
Large
WebPath

Squamous cell carcinoma of the cervix
Radical surgery
WebPath

Squamous cell carcinoma of the cervix
Radical surgery
WebPath

Glassy cell carcinoma
of the cervix
Pittsburgh Pathology Cases

Mild dysplasia
HPV effect
Wikimedia Commons


{08911} uterine cervix, carcinoma in situ, histology
{08912} uterine cervix, carcinoma in situ, histology
{46209} cervical conization specimen. One may cure CIS by removing the entire ring of abnormal cells.

Carcinoma in situ
Cervix
KU Collection

    As noted in the above caption, it's usual and customary to cure CIN III by conization, i.e., removing the ring of cancer cells or (nowadays) hot-loop electrosurgical excision. There is a very slight increase in the risk for pre-term delivery after this, but its well worth the risk (Ob. Gyn. 114: 504 & 727, 2009; Ob. Gyn. 114: 511, 2009). Women are still at some increased risk for eventually (up to decades, and into old age) developing an invasive cancer (BMJ 335: 1053, 2007), but it is far, far less than if the lesion is ignored.

      * Worth recognizing: Inter-observer variation in culscopy is surprisingly large. See Ob. Gyn. 110: 833, 2007.

    INVASIVE CANCER arising in from CIN III is usually squamous.

      Pathologists distinguish subtypes of squamous cancer based on their histology and resemblance to the cells of the normal cervix.

      • Keratinizing (well-differentiated) resembles the superficial cells.

      • Large-cell non-keratinizing (moderately well-differentiated) resembles the intermediate cells.

      • Small-squmous-non-keratinizing (poorly-differentiated) resembles the parabasal cells.

      * There are some less common cancers, also:

      • papillary squamous

      • verrucous squamous

      • condylomatous squamous

      • lymphoepithelial squamous

      • sarcomatous squamous

      • neuroendocrine (oat-cell / carcinoid-like)


{25962} cervix, carcinoma in situ, pap smear
{34775} carcinoma in situ of cervix, pap smear
{10292} carcinoma of the cervix, gross
{10583} carcinoma of the cervix, gross; bladder is above, rectum below
{10913} carcinoma of the cervix; bladder is right, rectum is left
{46321} carcinoma of cervix, gross
{46322} carcinoma of cervix, gross

    Squamous CA of the cervix
    Pap smear
    Wikimedia Commons

      "Microinvasive carcinoma" implies invasion no deeper than 5 mm (Europe) or 3 mm (US) with no evidence of vascular invasion. Microinvasive carcinoma will be treated with cervical conization or hot-loop, preserving fertility; more deeply invasive carcinoma needs hysterectomy.

        * Sending the entire conization specimen for frozen section seems like the best option to assure that as little tissue as possible is taken: Am. J. Clin. Path. 122: 383, 2004.

        It is not always clear whether microinvasion has taken place, and today's hard-core pathologists use double immunostaining for keratin (the cancer cells) and collagen IV and/or laminin (for basement membrane). See Arch. Path. Lab. Med. 129: 747, 2005.

        Surprisingly, there's no consensus about what lymph node is most list likely to receive the first metastasis ("sentinel node") in cancer of the cervix. The best bet is "somewhere in the external iliac, obturator, or parametrial regions." Am. J. Ob. Gyn. 197: 678.e1-7, 2007.

        Future pathologists: Staining pap smears routinely for p16INK 4a, which is strongly overexpressed in premalignant / malignant cervical epithelial cells, may soon be routine as a way to help screeners. Though not specific, it seems 98% sensitive in picking up high-grade lesions (Cancer 105: 461, 2005). Follow-up, using p16 and Ki-67, shows they greatly reduce the number of "don't know" pap smears (Arch. Path. Lab. Med. 131: 1343, 2007).

    * THE DEATH OF EVA PERON

      Eva Peron ("Evita"), wife of Argentina's left-wing dictator Juan Peron, died in January 1952 of cervical cancer.

      Juan Peron's previous wife had also died of cancer of the cervix. Pap smears were in use in the developed world in the late 1940's, but had not caught on in Argentina.

      In January 1950, Ms. Peron fainted in public and was found to be anemic, evidently as the result of iron deficiency from blood loss due to her cancer. It's not clear whether her cancer was found at the time, but she continued to have heavy vaginal bleeding. She was taken to surgery and operated by an American "ghost surgeon"; she was never informed of what had been done, who operated her, or the nature of her illnesss.

      How much of this was the "fifties" mentality ("beneficience" / "paternalism" / "the duty NOT to tell a cancer patient the diagnosis" / the general concealing of unpleasant truths)? How much was the "VIP syndrome", in which prominent people get their health problems concealed from the public? You'll have to decide this for yourself.

      Ms. Peron was enormously popular with her people, especially for her advocacy for the poor. She was one of the most beautiful and charismatic women of her era -- perhaps any era. My reading tells me that most of today's historians consider her a thoroughly genuine humanitarian. You can read about her final illness in Lancet 355: 1988, 2000.

Eva Peron
Evita

    ADENOCARCINOMA of the cervix constitutes only around 15% of cervical cancers, but it is less likely to be detected during its in-situ phase (if a particular tumor actually even goes through an in-situ phase; leave the diagnosis of "adenocarcinoma in situ" to us; it's difficult Arch. Path. Lab. Med. 128: 153, 2004; Cancer 99: 323, 2003.) If the in-situ lesion is identified, complete excision with clean margins almost always results in cure (Am. J. Ob. Gyn. 200: 182, 2009).

    Of course, squamous cell carcinoma and adenocarcinoma occur together fairly often (Cancer 102: 218, 2004). Complying with recommendations for routine pap smears greatly decreases, but does not eliminate, a woman's risk for this cancer (Cancer 99: 336, 2003).

    Medical school undergraduates do not really need to learn to read pap smears, but it's enriching. The old-fashioned pap smear (you smear the specimen on a slide) includes more cells than the newfangled "liquid thin prep" (you put the specimen in fixative; easier to read Cancer 99: 342, 2003), despite early claims (Br. Med. J. 326: 733, 2003) it's really neither better nor worse in terms of sensitivity or specificity compared to the ordinary old smears (Ob. Gyn. 111: 167, 2008; Ob. Gyn. 112: 1327, 2008). Computers ("Auto-Pap"/"Focalpoint") now screen pap smears with accuracy about equal to a human cytotechnologist (Cancer 99: 129, 2003). And even experienced pathologists do not always make the right call on either type of test: Arch. Path. Lab. Med. 127: 1413, 2003; Arch. Path. Lab. Med. 128: 17, 2004). If a pap smear that you obtained on one of your patients does not include any endocervical cells (columnar or squamous-metaplastic, we can tell), we'll let you know that you probably did not sample the "transformation zone", where ectocervix joins endocervix and most dysplasia / carcinoma-in-situ and invasive cancers begin. And of course, there are both squamous and glandular cells that look just a little bit strange ("litigation cells"), and no one knows what they mean (Ob. Gyn. 107: 701, 2006 ).

      The "atypical squamous cell of uncertain significance" has long been the bane of pathology malpractice insurers. We now know that in the absence of high-risk HPV infection, these tend to go away during the two-year follow-up (Am. J. Ob. Gyn. 201: 569e, 2009).

      The "atypical glandular cell", which may be the precursor of, or the only sign of the early presence of, either cervical or endometrial adenocarcinoma, is especially difficult -- women with high-risk HPV are likely to have cervical cancer, those without endometrial cancer (no surprise) (Ob. Gyn. 115: 243, 2010; Arch. Path. Lab. Med. 134: 103, 2010).

    Your lecturer predicted in 2003 that the routine pap smear would soon be supplemented in most cases by routine DNA probing for the high-risk HPV strains, with pap smear/biopsy limited to those who are positive. See Arch. Path. Lab. Med. 127: 940 & 969 & 984 & 991 & 995, 2003; Arch. Path. Lab. Med. 128: 298, 2004; Postgrad. Med. 118: 37, 2005. It's now clear that pap smears miss about a quarter of patients with high-risk HPV infection and (?) smoldering premalignancy: Cancer 111: 1, 2007. Women with high-grade dysplasia or invasive cancer apparently ALL test positive for HPV: Am. J. Ob. Gyn. 189: 118, 2003. It is now clear that this does indeed reduce the rate of high-grade lesions in the upcoming years; expect it to be standard soon, perhaps even replacing the routine pap smear (NEJM 357: 1579 & 1589, 2007).

    Also watch special staining of pap smears for markers of proliferation (notablyProEx C and the more-familiar MIB-1: Cancer 114: 196, 2008). They seem to correlate with how mean an intra-epithelial lesion is, supplementing information from the appearance of the cells.

    * Almost all invasive cervical cancers have amplified TERC, the human telomerase gene. The Swedes have developed FISH to look for amplified TERC on pap smears, and of course find that the ones with amplified telomerase are much more likely to harbor aggressive lesions. I doubt this will become clinically useful, since the women are going to get biopsied anyway, but it's interesting (Am. J. Path. 175: 1831, 2009).

    The HPV vaccine ("Gardasil"): NEJM 356: 1915 & 1928, 2007; J. Inf. Dis. 196: 1438, 2007. The latter reports that the quadrivalent gives essentially complete protection against HPV-6, -11, -16, and -18 so long as she has not yet met that particular strain. It's an expensive and painful injection, and the politics are especially weird. After the opposition from "social conservatives" was overcome and the vaccine was finally made available, several state governments tried to require immunization of girls as a condition of attending public schools (Clin. Pharm. Ther. 82: 760, 2007). If you can't see why this was senseless, please review your basic principles of public health. Thankfully, none of the activism succeeded.

* "The Toxic Lady!"

    Gloria Ramirez died in a California emergency room as a result of cancer of the cervix causing ureteral obstruction and kidney failure. Emergency room personnel who were present for the resuscitation became acutely sick (lacrimation, fainting).

    The popular explanation (put forward in For. Sci. Int. 87: 219, 1997) is that she had taken the quack cancer remedy dimethylsulfoxide (DMSO), and that it gave rise to the poison gas dimethyl sulfate.

    Is this credible?

    Yes!

    • Dimethyl sulfate is a potent war gas that with no warning or smell causes lacrimation, then fainting and seizures.
    • White crystals were noted in the venipuncture tubes. Dimethyl sulfone already present in high concentrations in the blood would have come out of solution as soon as the blood cooled.
    • The venipuncturist, and then a physician who smelled the syringe, both fainted; the physician seized.
    • Gas chromatography and mass spec showed dimethylsulfone, the major metabolic oxidation product of DMSO, in the blood and bile
    • Some personnel noted an "oily sheen" on the body, which might have been DMSO
    • A member of the ER staff noted "a fruity, garlic odor" on the patient's breath; people who ingest DMSO get garlic-breath from dimethyl sulfone, a minor metabolite
    • Seizures and late hepatitis are also reported in those exposed to dimethyl sulfate; and were suffered by the physician who was present for the venipuncture.
    • Chloramine, the other proposed explanation (For. Sci. Int. 94: 217, 1998) is more an irritant gas and doesn't really match the scenario.

    No!

    • The "ammonia-like odor" that one observer recalled emanating from the dying woman is more suggestive of kidney / liver failure.
    • No one produced a bottle of DMSO from the home.
    • Elevated sulfate in the post-mortem blood might have been due to her acute kidney failure. Her assay was 620 ug/mL, normal is 8-20; this seems too high even for kidney failure.
    • The conversion of dimethyl sulfone to dimethyl sulfate is not attested in any known biological system. There are some enzymes that do similar things.
    • No one got sick at the autopsy. Those performing it did wear airtight suits and separate air supplies. And as the body cooled, the production of the sulfate may have stopped and the sulfate continued to hydrolyze.

* In the monster movie Godzilla 2000, a photomicrograph of the monster's skin is examined by a group of scientists. Fascinatingly, it appears identical to normal human ectocervix.

Endometrium / Myometrium

Uterus Exhibit
Virtual Pathology Museum
University of Connecticut

www.endometrium.org
Photomicrograph collection
Lots and lots of photos

Uterine Corpus I
From Chile
In Spanish

Uterine Corpus II
From Chile
In Spanish

Uterine Corpus III
From Chile
In Spanish

Uterine Corpus IV
From Chile
In Spanish

Uterus
"Pathology Outlines"
Nat Pernick MD


{24701} normal proliferative endometrium
{08915} normal proliferative endometrium
{27149} normal proliferative endometrium
{27152} normal secretory endometrium, note subnuclear glycogen
{24702} normal secretory endometrium, histology
{14318} normal secretory endometrium, histology
{14321} normal secretory endometrium, histology
{14987} normal secretory endometrium; glycogen stain
{20681} normal secretory endometrium, histology

Normal proliferative endometrium

WebPath

Normal secretory endometrium
Later
WebPath

Normal secretory endometrium
Post-ovulatory
WebPath

INTRODUCTION

    Birth defects of the uterus are uncommon. You are familiar with the absent uterus (and streak ovaries) of Turner's syndrome. Don't worry for now about the various malformations that result from problems with development or fusion of the mullerian ducts. Those that cause a septum down all or part of the uterus (i.e., imperfect fusion) may make it difficult to take a pregnancy to term.


{40183} bicornuate uterus, gross
{40184} bicornuate uterus, gross
{49373} double uterus
{00093} prolapsed uterus protruding from vagina

Female -- birth defects
From Chile
In Spanish

Bifid uterus

WebPath

Prolapsed uterus
Ed Uthman

    Following deliveries, the uterus may prolapse.

    Words to know:

    • Menorrhagia / metrorrhagia: Heavy menstrual periods
    • Dysmenorrhea: Painful menstruation
    • Epimenorrhea: Irregular bleeding between cycles

THE NORMAL CYCLE

    During reproductive life, the endometrium goes through a monthly cycle. The first half ("proliferative phase") begins with menstruation and is of rather variable length. The second half ("secretory phase") begins at ovulation, and should be 14 days, with less variability.

    Leave the dating of endometrial samples to pathologists. You will usually get one of these diagnoses:

    • Early proliferative (i.e., some gland mitoses, some edema, little gland tortuosity)
    • Middle proliferative (i.e., some gland mitoses, some edema, some gland tortuosity)
    • Late proliferative (i.e., many gland mitoses, no edema, some gland tortuosity)
    • Secretory, date ___
    Worth remembering:

    • The glandular cell nuclei are elongated and lined up in parallel in proliferative endometrium. They round up in secretory endometrium.
    • Gland mitoses are gone by about day 3 after ovulation ("day 17 of the cycle")
    • Basal vacuoles appear in the glandular cells at ovulation ("day 14 of the cycle"). The vacuoles will be present in all cells at two days after ovulation ("day 16 of the cycle"), and gone by five days after ovulation (day 19 of the cycle).
    • Secretion is most abundant in the glands around day 8 after ovulation ("day 22 of the cycle"); after it drops off, the glands get a serrated, sawtooth look
    • The spiral arterioles become obvious about day 9 after ovulation ("day 23 of the cycle")
    • Predecidual reaction (i.e., big plump pink stromal cells) appears around the vessels about day 9 after ovulation ("day 23 of the cycle"), increasing until the end of the cycle
    • Lymphocytes become more numerous about day 10 after ovulation ("day 24 of the cycle"), and neutrophils appear about day 12 after ovulation ("day 26 of the cycle")
    • There will be mitotic figures in the stroma throughout the cycle, but fewest at day 4 after ovulation ("day 18 of the cycle").
    • Women on the oral contraceptive pill, especially the older ones, will show inactive glands in an active stroma with predecidual cells.

    The reason that anybody cares is to assess whether the cycles are normal. If a woman bleeds between cycles during her reproductive life, the cause is usually one of the following:

    • complication of pregnancy (ectopic pregnancy, miscarriage, trophoblastic disease)
    • submucosal leiomyoma (interferes with the development of the endometrium)
    • endometrial polyp (abnormal benign patch of endometrium)
    • endometrial hyperplasia
    • cancer
    • "dysfunctional uterine bleeding", i.e., some problem with the hormonal symphony; this is the most common
    DYSFUNCTIONAL UTERINE BLEEDING has several causes.

    • Anovulatory cycles are common around menarche and menopause
    • A granulosa and/or theca tumor in an ovary producing estrogens and/or progesterone
    • Endocrine disease elsewhere (especially the pituitary or thyroid)
    • Massive obesity (too much estrogen being converted)
      • All of these will give "unopposed estrogen effect" on biopsy, with a thick endometrium with long glands but without decidual-type change. The endometrium starts breaking down early in patches, hence the bleeding.

    • Too little body fat (too little estrogen being converted)
    • Severe chronic disease ("something with the interleukins")
    • Inadequate luteal phase (i.e., the corpus luteum doesn't form properly and the second half of the cycle may be abnormally long if the corpus luteum develops slowly, or short if it doesn't develop at all) -- the pathologist will make the diagnosis by discovering that the date of the endometrium is less than the chronologic date
    • Persistent luteal phase (i.e., the corpus luteum doesn't regress as it should) -- there is still obvious decidual change in the menstrual endometrium, and the periods are long and heavy.

ENDOMETRITIS

    The endometrium is very resistant to bacterial infection.

    Infection by common bacteria (strep A, staph) is usually the result of retained products of conception. Surgical removal of the remnants is the mainstay of therapy.

    Pyometra is thankfully rare. It is a purulent infection of the uterus, as when products of conception are retained or the os is closed.


{49374} pyometra, gross

    Clostridial gas gangrene is an infamous, lethal complication of attempted self-abortion.

    Other infections after childbirth or natural or induced abortion include strep, staph, and E. coli. In the Bad Old Days before common-sense hygiene, physicians carried these infections from woman to woman on the delivery unit.

    On the Coontagiousness
    of Puerperal Fever
    Oliver Wendell Holmes MD

    Acute endometritis (i.e., neutrophils) often has no obvious cause; various mycoplasma are the "usual suspects" and this is now being confirmed with PCR: Lancet 359: 765, 2002

    Chronic endometritis is, by definition, the presence of plasma cells in the endometrium. Usually this is the result of gonococci or chlamydia having their home base in the oviducts (confirmed by response to therapy: Am. J. Ob. Gyn. 190: 305, 2004), or else simply the effect of compression by a nearby leiomyoma (nobody knows how).

      * Future pathologists: Since chronic endometritritis may be the only explanation for a woman's bleeding, it's important to spot those few plasma cells, which may be difficult. Using the syndecan-1 stain to do so: Arch. Path. Lab. Med. 128: 1000, 2004.

      * There seems to be only a minor or no correlation with bacterial vaginosis (Am. J. Ob. Gyn. 195: 1611, 2006).

    Less often, retained products of conception are the cause. Obviously an intrauterine contraceptive device will produce chronic inflammation.


{27170} chronic endometritis; notice the plasma cells

    Also remember TB, especially in the poor nations.

    Thankfully, nobody still uses the magnesium-rich super-absorbent tampons that proved such a good culture medium for the staphylococci that produce toxic shock syndrome.

Entamoeba gingivalis endometritis
Advanced students
Yutaka Tsutsumi MD

ADENOMYOSIS ("endometriosis interna")

    Sometimes the endometrium pooches deep into the myometrium in a few places. This can be visible grossly in a resected uterus.

    It's easy to tell this isn't cancer, since the glands are benign and there is stroma with them.

    A common criterion for diagnosis is glands-plus-stroma one medium-power field width below the endometrial-muscular junction. However, pathologists differ widely in whether they "call" it. One recent study (which suggested that previous instrumentation can be a cause, which makes sense) found about half of uteruses removed for whatever reason to contain at least "pathologist's adenomyosis" (Ob. Gyn. 104: 1034, 2004). Obviously this can cause discomfort just before and during menstruation. You'll be told that adenomyosis is one of the major causes of menstrual cramps, and there is no question that some women with adenomyosis have no other clear cause and do get relief from hysterectomy. Irregular bleeding is also attributed to the process.

    An adenomyoma is a nodule where there is a great deal of adenomyosis. More often, the process is diffuse, and if severe will expand the uterus.

    * Contrary to old work, at least new studies confirm that adenomyosis lesions do in fact contain progesterone receptors (Gyn. Ob. Inv. 45: 126, 1998; Eur. J. Gyn. Onc. 254: 222, 2004).


{14330} adenomyosis, histology

Adenomyosis

WebPath

Adenomyosis

WebPath

Adenomyosis
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery

ENDOMETRIOSIS ("endometriosis externa", BMJ 334: 249, 2007)

    This is endometrium outside the uterus. The most common site is the ovary. Almost as common are the ligaments of the pelvis, and in surgical scars of the abdomen. But it can occur in the vulva, vagina, intestine, umbilicus (!) or even the airways (!!).

    Don't worry about the etiology. The various ideas ("regurgitation", i.e., retrograde menstruation; metaplasia of the coelomic epithelium; metastases via lymphatics) all probably operate at different times.

      The new laparoscopic hysterectomy techniques have resulted in massive endometriosis when the uterus is morcellated and fragments of endometrium spread all over the peritoneum (Ob. Gyn. 102: 1125, 2003).

      * Your lecturer is unimpressed with claims that the growths are clonal or bear distinctive mutations; all the recent ones have come from studies of already-established cell cultures.

    Being on the oral contraceptive pill seems to prevent endometriosis from forming.

      * Hormones remain mysterious. Watch metformin (?!) as a drug to arrest endometriosis.

    At least one women in 10 will have symptoms of endometriosis during reproductive life. Endometriosis cycles like endometrium does.

    The gross appearance of endometriosis depends on how extensive the disease is.

      Minor lesions look like powder burns under the serosal surface.

      Longstanding ovarian lesions present "chocolate cysts", full of old blood.

      Large lesions where the blood has organized present extensive fibrosis. This can obliterate the pouch of Douglas, obstruct the bowel, obstruct the oviduct, and so forth.

        Understandably, these lesions can produce dyspareunia (pain on intercourse), constipation, and dysmenorrhea (pain on menstruation).

        Infertility often accompanies endometriosis; exactly how this happens is a minor mystery.

          * For some reason, fertilized eggs in women with endometriosis often fail to implant, indicating that something is wrong with all the endometrial tissue. This is confirmed by cutting-edge gene profiling: Endocrinology 144: 2870, 2003.

    To make the diagnosis, the pathologist must find two of three:

    • endometrial glands
    • endometrial stroma
    • hemosiderin (from the bleeding)


{25284} endometriosis, histology
{46270} endometriosis, histology
{39843} endometriosis of appendix, gross
{10283} ovarian endometriosis, gross ("chocolate cyst")

Endometriosis

KU Collection

Endometriosis
GIF animation
WebPath

Endometriosis

WebPath

Endometriosis

WebPath

Endometriosis

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Endometriosis

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Endometriosis of ovary

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Endometriosis of Ovary
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery

ENDOMETRIAL POLYPS

    These curious lesions are probably clonal overgrowths of endometrium that do not cycle with the rest of it. The result is a nodule on the endometrium that is likely to bleed between cycles.

      If the cause is loss of a gene that is required for proper monthly shedding, as seems reasonable, it remains undiscovered. The lesions are not premalignant.

    The histology may seem normal, or show some cystic hyperplasia (see below). The tipoff that curettings contain a polyp is the presence of thick-walled blood vessels (i.e., they've had time to develop and not been shed every month.) Removal by curettage usually is curative.

    With today's imaging, we are picking up lots of "polyps" that aren't bleeding, and there's always the question of "Which ones need to be removed?" An older woman (peri-menopausal or post-menopausal), especially if hypertensive, probably needs it excised, as there's a fair risk that it's not a real polyp, but a pre-cancer or cancer (Am. J. Ob. Gyn. 201: 462.e1, 2009).


{24593} endometrial polyp, gross
{49375} endometrial polyp, gross
{24447} endometrial polyp, histology

Endometrial polyp

WebPath

ENDOMETRIAL HYPERPLASIA

    This is an overgrowth of endometrium, but without the ability to metastasize (yet). We still haven't sorted out how much is due to a disturbed hormonal milieu, and how much is due to mutations (selected-for in a disturbed hormonal milieu).

    Nobody really knows the "risk of turning into adenocarcinoma", since the diagnosis is made only on biopsy and this itself affects the illness (curettage may be curative).

    Hyperplasia, and its distinction from well-differentiated adenocarcinoma, is still best called on cyto-architecture rather than cytologic features (Cancer 108: 77, 2006). That sounds easy, but reproducability of diagnosis is poor, even among subspecialist pathologists (Cancer 106: 804, 2006).

    SIMPLE HYPERPLASIA ("cystic hyperplasia", "mild hyperplasia", "endometrial hyperplasia without atypia") features:

    • glands of very uneven sizes
    • cystically dilated glands
    • no anaplasia
    • no extra cancer risk
      • If a lady has this at the time of her last period, she will have a cystic endometrium throughout postmenopausal life. This is quite common at autopsy.


{00096} endometrial hyperplasia, gross
{00099} endometrial hyperplasia, gross
{10907} endometrial hyperplasia, gross
{38986} endometrial hyperplasia, gross
{08918} "cystic hyperplasia" of endometrium, histology
{08919} "cystic hyperplasia" of endometrium, histology

Simple hyperplasia of endometrium
Great labels
Romanian Pathology Atlas

Endometrial hyperplasia

WebPath

Cystic hyperplasia

WebPath

    COMPLEX HYPERPLASIA ("complex / adenomatous hyperplasia without atypia")

    • crowded glands
    • irregularly-shaped glands
    • no anaplasia
    • about 5% risk of turning into adenocarcinoma
    ATYPICAL HYPERPLASIA ("higher grade hyperplasia")

    • crowded, irregular glands, "budding", but there is still stroma between them
    • anaplasia (bizarre cells, some piling up or "tufting")
    • about 25% risk of turning into adenocarcinoma (but who wants to find out?... lately one group found a 40% rate of a concurrent adenocarcinoma: Cancer 106: 812, 2006)
    Leave the details up to the pathologists, including the various metaplasias that may occur in hyperplastic endometrium. All of these lesions are prone to regress on administration of progesterone.

    Not everyone likes the current (WHO) system, and some pathologist are distinguishing "atypical hyperplasia" and the supposedly-meaner "endometral intraepithelial neoplasia". The requirement is crowded glands presenting an area greater than stroma, with the cells different in morphology from the background; there are some immunostains that are supposedly helpful. Be this as it may, one big study reports that prognosis seems to be the same (Cancer 113: 2073, 2008).


{27164} "adenomatous hyperplasia" of endometrium

ENDOMETRIAL ADENOCARCINOMA

    This is a common cancer in women over age 40. Today, it is the most common of the gynecologic malignancy, with about 36,000 diagnoses of invasive disease yearly.

    The risk factors are well-known.

    • Extra estrogens from any source (estrogen replacement, thecoma, obesity)
    • Diabetes (nobody knows why)
    • Hypertension (nobody knows why)
    • Infertility (nobody knows why, "maybe it's all those anovulatory cycles with unopposed estrogen")
    • The nastier kinds of endometrial hyperplasia
    • The hereditary nonpolyposis colorectal carcinoma ("Lynch") syndromes (histopathology Cancer 106: 87, 2006; alleles Gastroent. 135: 419, 2008 -- for example, 15% of women carrying germline PMS2 mutations will get endometrial carcinoma in their lifetime; more on risk Gastroent. 137: 1621, 2009)

    Also remember

    • Time spent on the oral contraceptive pill is protective "because of the progesterone".

    Patients present with bleeding because of the invasion of the inner wall. Thankfully, these tumors usually announce themselves early. Only about one woman in six with cancer of the endometrium will die from it.

    Grossly, the lesions look like cottage cheese.

    Microscopically, in the common "endometrioid adenocarcinoma" (about 80% of these cancers) the pathologist sees back-to-back glands. Solid sheets of cells are more ominous. This has been general knowledge for decades and was recently reconfirmed in Am. J. Clin. Path. 129: 110, 2008. The grading system for endometrioid cancer:

    • G1: All glandular (less than 6% sheets)
    • G2: Some sheets
    • G3: More than 50% sheets
    • Increase the grade by one if the nuclei are unusually ugly.

      By no means are the G1's particularly tame. Around 15% of them will spread beyond the uterus (Am. J. Ob. Gyn. 198: 216.e1-5, 2008).

      * Soon we may be prognosticating endometrial adenocarcinomas on the molecular marker expression. The combination of survivin, p21, and p53 seems to be the best predictor of aggressiveness (Am. J. Ob. Gyn. 200: 78e1, 2009).

    If there is benign-looking squamous metaplasia, the pathologist describes an "adenoacanthoma". If the squamous areas are anaplastic, the pathologist describes "adenosquamous carcinoma". This is of little significance.

    Metastases eventually can occur, usually via the lymphatics.

    SEROUS ADENOCARCINOMA OF THE ENDOMETRIUM (Cancer 101: 2214, 2004; Cancer 104: 1391, 2005 -- HER2/neu amplification and all that this implies) and CLEAR CELL CARCINOMA OF THE ENDOMETRIUM are more aggressive, look like the corresponding ovarian lesions, and are less likely to be linked to high estrogen or to previous hyperplasia.

      The primary lesion is likely to be tiny, but to disseminate over the peritoneal surfaces, probably by reflux out the oviducts.

      * The precursor lesion of endometrial serous carcinoma is overexpressed p53, even when the endometrium looks normal (Am. J. Path. 174: 2000, 2009).

      * As elsewhere, HER-2/neu amplification is a strong predictor of bad outcome in the papillary serous lesion (Cancer 104: 1391, 2005). Watch for herceptin as an agent to treat these patients.

      * Let us make the distinction, especially between the tamer "endometrioid" cancer and the more aggressive ("always grade 3") serous cancer. The latter will light up with IMP3 and PTEN (Am. J. Clin. Path. 133: 899, 2010).


{05319} uterine carcinoma, radiograph
{08437} endometrial adenocarcinoma, gross
{39635} carcinoma of the endometrium, gross
{18782} adenocarcinoma of the endometrium, gross
{18783} adenocarcinoma of the endometrium, gross
{21075} endometrial adenocarcinoma, gross
{10586} carcinoma of the endometrium; dissection with bladder at bottom, uterus and vagina in middle, rectum at top
{10589} carcinoma of the endometrium, cross-section of uterus
{27161} adenocarcinoma of endometrium; notice glands-within-glands
{08916} adenocarcinoma of endometrium, low magnification
{08917} adenocarcinoma of endometrium, high magnification
{10694} adenocarcinoma of the endometrium, cytology

Endometrial adenocarcinoma

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Endometrial adenocarcinoma
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery

Endometrial adenocarcinoma

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Endometrioid carcinoma of endometrium
Great labels
Romanian Pathology Atlas

Endometrial adenocarcinoma

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Endometrial adenocarcinoma

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Endometrial adenocarcinoma

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Endometrial Adenocarcinoma
Dino Laporte's PathosWeb

MIXED MULLERIAN / MESENCHYMAL TUMORS

    MIXED MULLERIAN TUMORS arise from the endometrium and contain both malignant glands and malignant mesenchymal elements.

      In addition to bizarre spindle cells, there may be muscle, bone, fat, and/or cartilage; nevertheless, these will usually stain with epithelial markers.

      There is often a history of previous radiation (radiation-associated endometrial carcinoma is often histologically bizarre and tends to be more aggressive than ordinary endometrial carcinomas: Ob. Gyn. 113: 319, 2009).

      They tend to be aggressive and to metastasize as adenocarcinomas.

    ENDOMETRIAL STROMAL TUMORS are of three types. Leave the diagnosis to us; their histology is not for medical school undergrads.

    • STROMAL NODULES are little whorly balls of stroma and mean nothing.
    • ENDOLYMPHATIC STROMAL MYOSIS ("endometrial stromatosis"), a low-grade sarcoma with tame-looking stromal cells that somehow get into the lymphatics of the myometrium for some reason.
    • ENDOMETRIAL STROMAL SARCOMA is obviously malignant, with numerous mitotic figures; it is an aggressive cancer of older women.

Endometrial Stromal Sarcoma
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery

LEIOMYOMAS (Lancet 357: 293, 2001; Ob. Gyn. 104: 393, 2004)

    These are the banal "fibroids" of the myometrium.

      At least 25% of women have these during reproductive life. They are more common in blacks.

      The etiology is mysterious. They grow in response to estrogen, and shrink (and often vanish) after menopause.

        * One clue is that these tumor grow much more in response to 17beta-estradiol/E2 than do normal endometrial cells. Expect a signature mutation to be found soon (Endocrinology 150: 2436, 2009).

      Usually leiomyomas are asymptomatic, or cause problems by mass effect. A submucosal leiomyoma can produce bleeding between periods, and interfere with fertility. Large leiomyomas can cause problems with pregnancy.

    The tumors are rubbery white spheres. Grossly, the "whorled silk" pattern seen on cross-section is famous.

      Submucosal leiomyomas can produce bleeding. Subserosal leiomyomas are visible on the surface but don't mean anything.

      Tumors may calcify, show central necrosis (watershed infarct; when this becomes infected it's a "pyomyoma"), and/or fatty ingrowth.

      The new procedure of embolizing these tumors under fluoroscopy, rather than removing the uterus, seems safe and effective (Am. J. Ob. Gyn. 190: 1697, 2004; Ob. Gyn. 106: 52 & 1309, 2005; AJR 184: 399, 2005). The most serious risk is infection in the necrotic debris (OB Gyn 104: 1161, 2004). And prior to surgery, leiomyomas may be shrunk using a GNRH antagonist (BJOG 112: 638, 2005). Anastrazole (the aromatase inhibitor) for leiomyomas: Ob. Gyn. 110: 643, 2007.

    Microscopically you will have no trouble recognizing smooth muscle. Even if you see some odd cells, don't be concerned about malignancy unless you see mitotic figures.


{08438} leiomyoma of uterus, gross
{09774} leiomyoma of uterus, gross
{10910} leiomyoma of uterus, gross
{24703} leiomyoma of uterus, gross
{39636} leiomyoma of uterus, gross
{49380} leiomyoma of uterus, gross
{08728} leiomyoma, histology
{08729} leiomyoma, histology
{49383} lipoleiomyoma
{20184} calcified uterine leiomyomas, radiograph

Leiomyoma of uterus

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Large uterine leiomyoma
Whorls on cross-section
KU Collection

Leiomyomas of uterus

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Uterine Fibroids

Dino Laporte's PathosWeb

Leiomyomas
Red degeneration
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Leiomyoma

WebPath

Uterine Leiomyoma
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery

Leiomyoma of uterus
Great labels
Romanian Pathology Atlas

    INTRAVASCULAR LEIOMYOMATOSIS means a bunch of leiomyomas with a proclivity to grow down the veins. Curiously, this doesn't metastasize, and regresses after menopause.

    * The rare, oxymoronic "benign metastasizing leiomyoma / leiomyomatosis of the lung" is perhaps the least aggressive of all sarcomas. The tumors pop up in the lungs (Am. J. Med. Sci. 338: 72, 2009). "Wait-and-see" is perhaps best (Ann. Thorac. Surg. 87: 613, 2009).

    LEIOMYOSARCOMAS of the uterus are fairly common. If you see a smooth muscle tumor of the uterus with ten or more mitotic figures per ten high power fields, or if you see fewer with anaplasia, it's a leiomyosarcoma. Prognosis depends on the histology. The whole business is being reshuffled right now -- update Arch. Path. Lab. Med. 132: 595, 2008.


{09016} leiomyosarcoma of uterus, mitotic figure
{39637} leiomyosarcoma, showing mitotic figure

Leiomyosarcoma

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Leiomyosarcoma

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Leiomyosarcoma

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Leiomyosarcoma

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Oviduct

Fallopian Tubes
"Pathology Outlines"
Nat Pernick MD

Fallopian Tube Exhibit
Virtual Pathology Museum
University of Connecticut

PELVIC INFLAMMATORY DISEASE ("salpingitis")

    The usual infectious agents are the gonococcus and chlamydia.

      TB is now rare in the developed world, but very common in the poor nations.

      Actinomycosis usually results from the presence of an intrauterine device, on which the "superglue bug" can build its "sulfur granules" colonies.


{39001} intrauterine device (coil type)
{10280} intrauterine device in place
{10904} actinomycosis of the endometrium, histology (note "sulfur granules")

    Gonococcal and chlamydial "PID" is a sexually transmitted disease, and unfortunately very common. It can smolder, with pain being worst during the menstrual periods. During acute flareups, there is severe pelvic pain, especially when the cervix is manipulated, with peritoneal signs.

    Grossly, the tubes are swollen and inflamed. They may be packed with pus ("pyosalpinx"). During the acute phase, the pathologist will see neutrophils and marked edema. In chronic infection, there is a mix of neutrophils, lymphocytes, and other inflammatory cells. After everything is over, there is likely to be a lot of scarring, which will probably interfere with fertility; if the ends of the tubes are plugged by scar tissue, a "hydrosalpinx" results.

    Women still die of PID, either in the acute phase (sepsis) or from complications (peritonitis, obstruction).

    * Tubal infections that follow abortion or a childbirth infection tend to involve the mucosal surfaces rather than the lumen.


{10901} gonorrheal salpingitis
{27176} acute salpingitis, histology
{27173} chronic salpingitis, histology

Tubo-ovarian abscess

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Acute salpingitis

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OTHER LESIONS OF THE OVIDUCT

    CYSTS arise from embryonic structures. Hyatids of Morgagni / paratubal cysts arise from mullerian duct remnants and are mere curiosities.

    Paratubal cyst

    WebPath

      A patient with old pelvic inflammatory disease may be told that her tubes are "cysts".

    Adenocarcinoma of the oviduct is very rare and very deadly. Adenomatoid tumors are hard white spheres that arise from mesothelium.

    We will cover ECTOPIC PREGNANCY below.

Ovary

A HERMAPHRODITE is defined to possess at least some ovarian and some testicular tumor. This is very uncommon, and you'll learn how it can happen in your embryology course.

You are already familiar with the "streak ovaries" of Turner's 45 XO.

* Are there perhaps normally more than one ovulation per month? Br. Med. J. 327: 124, 2003.

Ovary I
From Chile
In Spanish

Ovary II
From Chile
In Spanish

Ovary III
From Chile
In Spanish

Ovary Exhibit
Virtual Pathology Museum
University of Connecticut

Ovary
"Pathology Outlines"
Nat Pernick MD


{24817} normal ovary in pregnancy
{24695} normal graafian follicle
{24696} normal graafian follicle, higher power


{24698} radiation injury to ovary; note loss of germ cells and radiation change in vessels

    AUTOIMMUNE OOPHORITIS (review JAMA 53: 18, 1998) is coming to be recognized as an important cause of infertility; around half of women with unexplained premature ovarian failure have autoantibodies (Hum. Rep. 12: 2623, 1997).

      Nobody knows the cause; autoantibodies are found against granulosa/theca cells. and/or zona pellucida, and T-killer cells abound around the follicles.

      * One animal model involves autoimmunization with zona pellucida (ZP3): Mol. Rep. Dev. 48: 140, 1997 -- watch this antigen, as it's being discussed as a reversible contraceptive. Curiously, some mice develop autoimmune oophoritis after thymectomy.

    PRIMARY OVARIAN FAILURE, defined to be arrest of normal function before age 40, happens in 1% of women. It is often familial.

      * One known locus is NR5A1 (NEJM 360: 1200, 2009), where different alleles mediate a variety of effects for genetic males and females.

    OVARIAN TORSION usually is caused by an ovarian mass, but can happen at any age.

      It'll present as an acute abdomen. You'll pick it up on ultrasound, and probably treat it through a laparoscope -- fixing a viable ovary, removing a non-viable ovary.

      * Treating it in the unborn (!) -- J. Ped. Surg. 32: 1447, 1997.

      Ovary with torsion, gross

      WebPath

      The mysterious "massive ovarian edema" might be the result of partial torsion (J. Rep. Med. 41: 359, 1996) or (seems more likely to me) thrombosis of the ovarian vein.

    Worth knowing: Probably because of its very dense connective tissue substance, bacteria seldom infect the ovary itself.

CYSTIC FOLLICLES ("follicular and luteal cysts")


{00105} cystic follicles in ovary

    Expect these in most ovaries. They are remnants of graafian follicles (unruptured or resealed, luteinized or not) that didn't regress. Nobody knows why.

    Big ones can cause torsion and/or possess too much luteinized theca cell tissue resulting in hyperestrogenism.

    CORPUS LUTEUM CYSTS are simply oversized. They are filled with blood and fatty debris, so when a corpus luteum cyst undergoes torsion or ruptures, it's a bit more of a problem.

Ovary with corpus luteum

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Ovary with hemorrhagic corpus luteum

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Ovary with hemorrhagic corpus luteum

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Benign Ovarian Cysts

Dino Laporte's PathosWeb

Ovary with follicular cyst

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Ovary with theca-lutein cyst

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STEIN-LEVENTHAL SYNDROME ("polycystic ovarian disease / syndrome"; Lancet 370: 685, 2007)

    The familiar, common (maybe one woman in 15 sometime during her life), poorly-understood syndrome features enlarged ovaries with numerous cysts, excess stroma, and thick, smooth fibrous surfaces, plus failure of ovulation (by definition), obesity (often), insulin resistance and failure of release of insulin (usually), amenorrhea or irregular periods, and hirsutism / excessive androstenedione (Hum. Rep. 13: 1437, 1998) production (often).

      We used to think "the fibrosis around the ovary prevents ovulation." The worst enemy of wrong hypotheses is facts, and it's now known that around 25% of normal women during reproductive life have polycystic ovarian morphology (J. Clin. Endo. Metab. 91: 3878, 2006), and the vast majority never have any problems.

      And of course, ovaries with numerous cysts but lacking the outside fibrosis have nothing to do with Stein-Leventhal.

      * A consensus conference in 2003 came up with the "Rotterdam Criteria" for scientists; they're under review as too narrow, and there are a host of sub-phenotypes (Am. J. Ob. Gyn. 198: 670e, 2008; BJOG 116: 1633, 2009). In a nutshell, two of three without any other obvious casue: (1) at least one ovary with 12 or more cysts 2-9 mm and/or a total volme of 10 mL or more; (2) clinical or biochemical signs of hyperandrogenism; (3) oligo- or anovulation.

      Obese young women with polycystic overy syndrome tend to have much worse coronary atherosclerosis than their normal peers: J. Clin. Endo. Metab. 92: 4609, 2007.

    The failure of ovulation results from no follicle becoming dominant, or reaching the full size for ovulation (J. Clin. End. Metab. 83: 3984, 1998). Since nobody knows how one follicle comes to be selected as dominant, our understanding of Stein-Leventhal is probably a long way off.

    Biopsies obtained during laparotomy shows that women with polycystic ovary disease, even when mild and the woman is still ovulating, have much more early-growing follicles than do normal women (Lancet 362: 1017, 2003).

    Because androstenedione can turn into estrone, hyperestrogenism can also be a problem, including risk for endometrial adenocarcinoma.

    Your lecturer suspects that the principal cause is some hormone awaiting discovery.

      * the idea that it was resistin failed, but an important gene is probably nearby: Diabetes 52: 214, 2003).

      The hormonal symphony (or cacophony) include leptin, its receptor, adiponectin (down, early), insulin (up from resistance), testoserone (up), adrenal androgens (up), triglycerides (up) "omentin-1, a novel adipokine" (down; ever heard of that one? Diabetes 57: 801, 2008), and a host of others (J. Clin. Endo. Metab. 92: 2659, 4637 and 4771, 2007).

      And within the ovary, both theca and granulosa cells overexpress / underexpress a host of genes (J. Clin. Endo. Metab. 93: 4456, 2008).

      Perhaps the cysts form because the granulosa cells themselves proliferate instead of dying as they should at the end of the month: J. Clin. Endo. Metab. 93: 881, 2008).

    In the meantime, the disease is known to run in families, along with menstrual irregularities, hirsutism (men and women), and insulin resistance (Hum. Repro. 12: 2614, 1997; J. Clin. Endo. Metab. 93: 1820, 2008). The genetic tendency is clear, but exactly what's going on is remarkably elusive (J. Clin. Endo. Metab. 93: 3396, 2008). Even results for the favorite suspect, the androgen receptor, are mixed: J. Clin. Endo. Metab. 93: 1939, 2008.

      * Most of the genes linked to polycystic ovary syndrome also are linked to type II diabetes: J. Clin. Endo. Metab. 89: 2640, 2004.

      * Currently, metformin seems to work well to control Stein-Leventhal (Br. Med. J. 327: 951 & 974, 2003), along with diet and exercise of course. Proglitazide: J. Clin. Endo. Metab. 93: 3618, 2008. Stay tuned.

    The disorder is obviously polygenic and probably environmentally-related.

      * One candidate gene is VNTR in the insulin gene regulator (Lancet 349: 986, 1997) with other plays being sex-hormone binding globulin (J. Clin. Endo. Metab. 88: 5976, 2003), the two 5-alpha-reductases (J. Clin. Endo. Metab. 91: 4085, 2006), and a couple of fat-cell-differentiation gene (J. Clin. Endo. Metab. 88: 5529 & 5887, 2003).

      I predicted a lnk to metabolic syndrome X and non-alcoholic steatohepatitis years ago; this is now amply supported (Med. J. Aust. 174: 580, 2001 first, now J. Clin. Endo. Metab. 91: 1741 & 2789, 2006).

    STROMAL HYPERTHECOSIS ("cortical hyperthecosis") features hyperplasia and luteinization of the theca cells, making them overproduce androstenedione. The ovaries are big and yellow. Most (but not all) patients are post-menopausal.


{40757} polycystic ovary in Stein-Leventhal syndrome, gross
{46500} polycystic ovary in Stein-Leventhal syndrome, histology

INTRODUCING THE OVARIAN TUMORS


{05318} ovarian carcinoma, radiograph

    Ovarian cancers are common and deadly. In 2000, around 23,000 US women were discovered to have the disesase, and there were 14,000 deaths. Prognosis varies tremendously with the histology and the stage.
In memory, Gilda Radner

    There are three overriding categories of ovarian tumors.

    • SURFACE EPITHELIAL TUMORS supposedly arise from the coelomic epithelium on the ovarian surface, and recapitulate something derived from the woman's mullerian tubes
      • These usually present as mass lesions.

        They are rare before age 30.

        Sometimes a benign one will be almost all stroma, and be called an "adenofibroma".

        Any of these can also be primary on the peritoneum.

        Since the coelomic epithelium is continuous across both ovaries, and since cancer arises in a mutated field, the malignant ones tend to be bilateral when diagnosed; this does not make them incurable.

        The malignant ones tend to metastasize over the peritoneum and cause death by obstructing the bowel. These are the common ovarian cancers.

          BRCA1 and BRCA2 give a tremendously high lifetime risk (40% and 25% respectively; BRCA2 risk depends on the allele) for one of these ovarian cancers. It is now routine and ethical to remove their ovaries prophylactically (Cancer 86(S11): 2517, 1999) and/or do tubal ligation (helps, Lancet 357: 1476, 2001) and/or go on the oral contraceptive pill. Update on BRCA1 and BRCA2, and everything else about diagnosing and treating ovarian cancer: Mayo Clin. Proc. 82: 751, 2007.

          Lynch's hereditary colon polyposis (HNPCC) also puts a woman at increased risk (JAMA 277: 915, 1997, much-confirmed by now).

          Time on the oral contraceptive pill, or time pregnant, is protective apparently regardless of hereditary risk. Perhaps ovulation gives the coelomic cell the opportunity to divide which allows selection for the mutated clones. Despite the perennial talk about the very real health risks of the oral contraceptive pill, today's estimate is that it prevents 30,000 ovarian cancers, and 15,000 deaths from ovarian cancer, annually (Lancet 371: 303, 2008).

          Update for pathologists on ovarian cancer: Arch. Path. Lab. Med. 133: 1775, 2009.

          For some reason, tubal ligation seems to protect somewhat; despite a hoopla some years back, fertility drugs don't seem to be a risk (Mayo Clin. Proc. 82: 751, 2007).

          * Not so long ago there was a hoopla about cornstarch and talcum powder applied to the perineum as causing ovarian cancer. This makes no sense biologically, and it sounds like recall bias explains the early reports. Of course it was amply refuted (Am. J. Ob. Gyn. 182: 720, 2000). It's now back... one patient with pelvic lymph node talcosis had ovarian cancer (Ob. Gyn. 110: 498, 2007). I'll take this seriously when there are controls.

        Most serous and endometrioid tumors elaborate the marker CA-125 (* typo in "Big Robbins"), which is the basis for the blood screening test. In the "managed care" era, this hasn't caught on for mass screenings.

    • SEX CORD TUMORS recapitulate structures derived from the ovarian stroma or its counterpart in the male
      • These often announce their presence by producing a hormone. If (and only if) they produce a steroid hormone, they will be yellow.

        They can occur at any age. They are almost always unilateral.

    • GERM CELL TUMORS recapitulate sperms, eggs, placenta, or Baby.
      • These usually present as a mass, or as metastases if malignant.

        They usually occur in children and young women.

        The most common is the benign, banal dermoid tumor ("cystic teratoma") of young women. The other common ones are all cancers.

    These tumors are likely to be of mixed histology, but only within their own category. For example, a mucinous cystadenoma (surface epithelium) might well contain some Brenner tumor (also surface epithelium), but will not contain any thecoma (sex-cord) or dysgerminoma (germ cell).

    METASTASES TO THE OVARY are common, especially from breast and stomach. The latter especially is a common presentation for stomach cancer, the infamous "Krukenberg tumors" with massive bilateral enlargement of the ovaries, which prove at surgery to be stuffed with signet ring cells (update Arch. Path. Lab. Med. 130: 1725, 2006).


{11503} Krukenberg tumor of ovary, gross
{11500} Krukenberg tumor of ovary, histology; mucin stain (cancer cells are pink)

Krukenberg tumor

WebPath

SURFACE EPITHELIAL TUMORS

    SEROUS TUMORS

      These recapitulate oviduct, with papillary structures and often cilia. Often there are psammoma bodies.

      Most of these are malignant; a majority of the malignant ones arise bilaterally. This is the single most common ovarian cancer (about 40%).

      Benign serous tumors are quite tame-looking and always have a lot of cilia. Surgery is curative.


{09779} papillary cystadenoma of ovary, gross

Ovarian serous cystadenoma

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Ovarian serous cystadenoma

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Ovarian serous cystadenoma

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      Borderline tumors have piling-up of the cells (to three layers), perhaps with some anaplasia but with no invasion of the stroma. Surgery is usually curative; if a borderline has metastasized (usually over the peritoneal surface), survival is still likely for years or decades.

      When a serious ovarian tumor is fully-malignant, the fact that it's cancer is obvious.

      Future pathologists:

        The marker WT-1 distinguishes serous and "undifferentiated" carcinomas (positive) from non-serous carcinomas (negative -- J. Clin. Path. 61: 152, 2008).

        * For some reason that no one understands, peritoneal mesothelioma is becoming so common in Japan that distinguishing it from ovarian cancer has forced pathologists to come up with a panel of immunostains. Calretinin and thrombomodulin stain mesotheliiomas. Ber-EP4, MOC-31, CA19-1, and estrogen receptor stain serous ovariain cancer (Am. J. Clin. Path. 130: 771, 2008). What's more disturbing about this paper is the epidemic of peritoneal mesothelioma itself. Watch this.

        There are at least three different grading systems.

          U. of Virginia's 2008 entry correlates with response to platinum chemotherapy (the mainstay of treatment of advanced disease); low-grade tumors tend not to respond, while high grade tumors tend to respond.

            What's the pattern?

              +1 if it is glandular
              +2 if it is papillary
              +3 if it is solid

            How are the nuclei?

              +1 if they're uniform with low N/C ratio
              +2 if the nuclei are a bit big, the chromatin a bit clumpy, with nucleoli
              +3 for high N/C ratio, marked variability in nuclear size, very clumpy chromatin, big red nucleoli

            Now count mitotic figures!

              +1 for fewer than 7 mitotic figures per ten high power fields
              +2 for 7-16
              +3 for 16 or more

        What will probably turn out to be just as important is the genotyping, worth learning now..

          Low-grade serous carcinomas usually have mutant k-ras or b-raf, present in "borderline" and "benign" areas or the tumor as well.

          High-grade serous carcinoma usually has a p53 mutation early, without the k-ras or b-raf mutations.


{11515} serous cystadenocarcinoma of ovary, gross
{39560} serous cystadenocarcinoma of ovary, histology
{10382} serous cystadenocarcinoma of ovary, cytology
{10727} serous cystadenocarcinoma of the ovary, psammoma bodies in pap smear

Ovarian papillary serous cystadenocarcinoma

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Ovarian papillary serous cystadenocarcinoma

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Ovarian borderline serous tumor

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Ovarian serous cystadenocarcinoma

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Ovarian cancer
Bryan Lee

Ovarian serous cystadenocarcinoma

WebPath

Ovarian serious cystadenocarcinomas
Biilateral. CDC photo
Wikimedia Commons

Serous cystadenocarcinoma

Tom Demark's Site

    MUCINOUS TUMORS

      These recapitulate endocervix, with mucin production.

      Most of these are benign, with well-developed columnar cells and abundant mucin. They are always multicystic and can be very large. Benign mucinous tumors are very common. They are usually unilateral. Most of the tabloid newspaper tumors that weigh so much are benign mucinous cystadenomas.


{14165} ovarian mucinous cystadenoma, gross
{14177} ovarian mucinous cystadenoma, gross
{49396} mucinous cystadenoma of ovary, gross; unfortunately there's no ruler, but this might have weighed 30 lb.
{08938} mucinous cystadenoma of ovary, histology
{08940} mucinous cystadenoma of ovary, histology
{14171} ovarian mucinous cystadenoma, histology
{14180} ovarian mucinous cystadenoma, histology

    ENDOMETRIOID TUMOR (Cancer 112: 2211, 2008)

      For our purposes, all endometrioid tumors of the ovary are malignant.

      Pathologists recognize them by their resemblance to swiss-cheese endometrial adenocarcinoma.

      The risk factors are the same as for endometrial adenocarcinoma; there is often a history of endometriosis in the ovary as well.

      About half are bilateral. Often there is a coexisting endometrial carcinoma, but this does not imply that these are metastases; the diseases are still surgically curable.


{21090} endometrioid carcinoma of ovary, gross
{27200} endometrioid carcinoma of the ovary, histology
{25260} endometrioid carcinoma of the ovary

    CLEAR CELL ADENOCARCINOMA

      Maybe this recapitulates renal tubule, since renal cell carcinoma also has a lot of clear cells. Or (more likely) it recapitulates the clear cells seen in endometrial glands during pregnancy.

        * Your lecturer always liked the idea of it recapitulating renal cell carcinoma, and this is confirmed by finding that VHL (von-Hippel Lindau) shows up in renal tubules, renal cell carcinomas, and almost all "clear cell carcinomas" of uterus and ovary (Am. J. Clin. Path. 129: 592, 2008).

      Be this as it may, this tumor shows lots of big clear cells in sheets or tubes.

      "Clear cell tumors" of the ovary are all malignant and tend to be aggressive. The hereditary risk syndromes for serous cancer seem not to give increased risk here; the genetics are distinctive and are being worked out. Although they are fairly rare, they are infamous for resisting platinum-based chemotherapy (J. Clin. Path. 60: 355, 2007).

        * A distinctive mutation present in around half of these (PIK3CA) might be a target for chemotherapy that actually works (Am. J. Path. 174: 1597, 2009).

    Clear cell adenocarcinoma of the ovary
    Pittsburgh Pathology Cases

    BRENNER TUMOR

      These recapitulate the transitional epithelium of the bladder, as little chunks in a dense fibrous stroma. You need a good eye to appreciate this.

      They are almost all benign, and very little's written about them.

      * An old claim that finding "transitional cell carcinoma-like areas" in metastatic ovarian cancer was a good prognostic indicator turned out not to work: Am. J. Clin. Path. 109: 173, 1998.


{27083} Brenner tumor, histology
{39859} Brenner tumor, gross
{40518} Brenner tumor, histology

Brenner tumor

Tom Demark's Site

GERM CELL TUMORS (Am. J. Clin. Path. 109(S1): S82, 1998)

    MATURE (BENIGN) TERATOMAS

      The most common benign teratoma of the ovary is the dermoid cyst ("cystic teratoma"), with inside-out skin expanding gradually as it fills with sebum and keratin. There is usually some hair, and a "Rokitansky" nodule in the wall containing tissues of all three germ layers.

      Contrary to "Big Robbins", the tissues of a teratoma look like those in the fetus or young baby, rather than in the adult. The hair is the most likely stuff to look mature.

      About 15% are bilateral. All have the 46XX karyotype. Rarely a squamous cell carcinoma will arise in one of these (series BJOG 114: 1283, 2007), but otherwise they are thoroughly benign.

      Occasionally, a teratoma will look enough like an unborn child to be identifiable. This is called a "homunculus" (Arch. Path. Lab. Med. 130: 1552, 2006 -- disturbing images).

      The "growing teratoma syndrome" (first observed in men treated for testicular carcinoma) is recurrence of a clearly-malignant germ cell tumor after successful radiation and/or chemotherapy, as one or more masses that prove to be mature teratomas. It is also well-known in women following germ cell malignancies (Ob. Gyn. 108: 509, 2006); since they have more malignant potential than never-malignant teratomas, they should be removed.


{28667} cystic teratoma of ovary, benign, gross ("dermoid cyst")
{28670} cystic teratoma of ovary, benign, gross ("dermoid cyst")
{00111} dermoid cyst of ovary, gross
{11527} dermoid cyst of ovary, gross
{24595} dermoid cyst, gross
{17543} dermoid cyst, gross
{17547} dermoid cyst, brain tissue (white matter)
{17548} dermoid cyst, skin tissue

Ovarian teratoma
Great labels
Romanian Pathology Atlas

Mature teratoma
Classic ovarian dermoid
KU Collection

Ovarian dermoids

WebPath

Dermoid
Pilosebaceous apparatus
Tom Demark's Site

Ovarian dermoids

WebPath

Dermoid, fibroid, fibroma

WebPath

    Ovarian Dermoid
    Dino Laporte's PathosWeb

    SPECIALIZED TERATOMA ("monodermal teratoma", from one germ layer, actually a contradiction in terms)

      Sometimes a single tissue predominates. The two to remember are the very tame carcinoids (producing the carcinoid syndrome) and thyroid ("struma ovarii", rarely with hyperthyroidism.)

    IMMATURE TERATOMAS are composed of cells that resemble embryonic tissue.

      These are tumors of girls and young women, and are all malignant. They are only about 1% as common as mature teratomas. The more neuroepithelium, the worse the prognosis.

      "Gliomatosis peritonei" is peritoneal implants of glial tissue in girls with an immature teratoma. These seldom become frankly malignant, and no one really knows what to do about them (Br. J. Rad. 80: e101, 2007).


{15392} immature ovarian teratoma, histology
{15394} immature ovarian teratoma, histology
{15395} immature ovarian teratoma, histology; the bad section

Struma ovarii

WebPath

    DYSGERMINOMA

      This is the counterpart to a man's seminoma of the testis, composed of large, glycogen-rich, polyhedral "fried egg" cells. They are rare over age 30.

      Like seminomas, some produce hCG. Like seminomas, they are very sensitive to radiation and chemotherapy. They're little-studied today, though they're quite common -- thanks to their excellent response to treatment.


{24705} dysgerminoma of ovary, gross
{27038} dysgerminoma of ovary, histology

Ovarian dysgerminoma

WebPath

    ENDODERMAL SINUS TUMOR ("yolk sac tumor")

      These are aggressive cancers of children or young adults, which recapitulate the yolk sac.

      Like the yolk sac, they are loaded with alpha-1 antitrypsin and alpha-fetoprotein.

      Leave the identification of Schiller-Duval bodies, which recapitulate the duct of the yolk sac, to the pathologists.

      These used to be uniformly lethal, but now most are cured with chemotherapy.


{27107} endodermal sinus tumor of ovary (Schiller-Duvall bodies)

Yolk sac tumor
Pittsburgh Pathology Cases

    Miscellany

      * EMBRYONAL CELL CARCINOMA can arise in the ovary as in a man's testis.

      CHORIOCARCINOMA can be primary in the ovary; since this has none of Dad's tissue antigens for the immune system to reject, it's harder to cure than gestational trophoblastic disease.

      * A primary ovarian choriocarcinoma with some of the husband's chromosomes: Ob. Gyn. 102: 991, 2003.

      * A "polyembryoma" contains hundreds of little structures that look like developing embryos. Puzzle that one out!

SEX CORD TUMORS

    GRANULOASA-THECA TUMORS

      This is the new name for tumors that contain abundant granulosa-type cells (cuboidal steroid-producing cells), often with some forming Call-Exner bodies (holes for eggs, as in the normal ovary).

      There are often theca cells as well, and these may be spindly, or pink and plump (luteinized).

      Many of these produce estrogen. A few produce androgen. As steroid-producers, expect yellow on the gross.

      Those that arise in children ("juvenile granulosa cell tumors") tend to be more anaplastic.

      * All "adult-type" granulosa tumors seem to bear a trademark substitution in the FOXL2 gene (earliest known marker for ovarian differentiation; NEJM 360: 2719, 2009).

      Any granulosa tumor can metastasize.


{14192} granulosa cell tumor of ovary, gross
{14195} granulosa cell tumor of ovary, gross
{14198} granulosa cell tumor of ovary, histology; notice Call-Exner bodies

Ovarian granulosa cell tumor

WebPath

Ovarian granulosa cell tumor

WebPath

Ovarian granulosa cell tumor

WebPath

    THECOMA-FIBROMAS (Am. J. Ob. Gyn. 199.: 473e, 2008)

      These are a mix of variable proportions of inactive fibroblasts and hormonally-active theca cells. These tumors are solid, hard balls.

      Many produce estrogens; a few produce androgens. They almost never act malignant unless there are a lot of mitoses.

      For some reason they are prone to cause ascites and sometimes even hydrothorax ("Meig's syndrome). Nobody knows how (* possible serum factors: Am. J. Ob. Gyn. 184: 354, 2001; prefers the right side of the chest for unknown reasons).


{21084} ovarian fibroma, gross
{24599} ovarian fibroma, gross
{40105} thecoma, gross (good yellow color)
{40127} thecoma, H&E
{40126} thecoma, oil-red O stain for fat

Ovarian fibrothecomas

WebPath

Ovarian fibroma

WebPath

    SERTOLI-LEYDIG CELL TUMORS ("androblastomas", "arrhenoblastomas")

      These recapitulate the Leydig cells and/or seminiferous tubules. They are unilateral and solid.

      Most produce androgens; a few produce estrogens. Androgens from these tumors (or any other source) will tend to defeminize (i.e., stop the monthly cycle) and masculinize (=virilize, i.e., enlarge the clitoris, produce extra body hair, altered hairline, acne, more apocrine sweat, deep voice).

      Look for Reinke crystalloids in the Leydig cells.


{21086} Sertoli-Leydig cell tumor of ovary (good yellow color)
{20235} Sertoli-Leydig cell tumor of ovary, histology

    MISCELLANY:

      "Hilus cell tumors" are composed only of Leydig cells. They produce androgen.

      "Lipid cell tumors" are benign, full of yellow lipid, and usually virilize. "Pregnancy luteoma" is a massive corpus luteum.

      "Gynandroblastoma" is a mix of male and female sex cord type cells.

      "Gonadoblastoma" occurs in intersex people ("gonadal dysgenesis" -- undifferentiated gonadal tisue: J. Clin. Endo. Metab. 91: 2404, 2006. You'll see both eggs and a mix of sex-cord and stromal tumors.

Pregnancy

Early placenta and decidua
Probably a very early elective
abortion. Romanian Pathology Atlas

Placenta I
From Chile
In Spanish

Placenta II
From Chile
In Spanish

Placenta Exhibit
Virtual Pathology Museum
University of Connecticut

Placenta
"Pathology Outlines"
Nat Pernick MD

Measles of the placenta

Yutaka Tsutsumi MD

Conception
GIF animation
WebPath

Third trimester pregnancy

WebPath

Postpartum uterus

WebPath

Uterus, second trimester

WebPath

{47859} pregnant
{08434} normal pregnant uterus, gross
{09780} normal pregnant uterus; baby below match-stick
{24666} normal placenta
{21104} normal pregnancy
{38995} normal pregnancy
{08928} normal placental villi in ectopic pregnancy
{08930} normal placental villi in ectopic pregnancy
{11024} placental infarct, gross; these are common and usually harmless


{49415} hydrops fetalis
{49416} fetal death, cord around neck

Parvo B-19 hydrops fetalis

Yutaka Tsutsumi MD

Chorangioma
WebPath Case of the Week

EXAMINING THE PLACENTA (stil good: Am. Fam. Phys. 57(5), March 1998)

    If you, the clinician, do a delivery, the standard of care is to do and record a sixty-second examination of the placenta. This will also protect you if things don't go well with mother and/or child.

      A few hospitals send all placentas to the pathology lab. More often, the physician will decide.

    Here's what to look for:

      General: At term, weighs about a pound (weights variously given at 350-600 gm or so), about an inch thick (2.0-2.5 cm), 9-10 inches (15-25 or so cm) across. Smells like placenta, strongest on fetal side (you'll learn.)

        Thin placenta: Think of intrauterine growth retardation from placental insufficiency.

        Thick placenta: Diabetes? Hydrops fetalis? Infection? All these should be known to you already.

      Maternal surface: Deep maroon. Looks complete, no cotyledons absent.

        If there's something missing, it's still inside Mom and the "retained placental tissue" will bleed and/or get infected.

        Big blood clot? Suspect that there was an abruption!

        A few cotyledons fibrotic? Old infarcts. A few cotyledons overly red? New infarcts. Infarcts happen and unless they are involve more than 5% of the surface (typically much more), nothing to worry about.

        Pale? Is the baby anemic? Is Mom bleeding out?

        Soft? Infection?

        Fleshy, dark red blob? CHORANGIOMA (CHORIOANGIOMA). A benign hemangioma, of no consequence unless it is huge, in which case it acts as a shunt, consumes the baby's platelets, and can cause congestive heart failure.

      Fetal surface: Membranes are gray, glistening, and translucent, showing the maroon villi through them.

        The broken membrane edges don't bear any large vessels; if they do, there may well be an extra lobe still inside Mom.

        An accessory lobe, separated from the main placenta by vasculature, is called a SUCCENTURIATE LOBE and the membranes are often attached. If by misfortune this overlies the cervix, it's likely there'll be bleeding. A BILOBATE placenta, with equal-sized lobes, carries the same risk.

        CIRCUMVALLATE PLACENTA: The basal plate (mom's side) is quite a bit bigger than the chorionic plate (baby's side); this will appear as a ring around the edge on the fetal surface. This can cause various problems as you'd expect, since the baby's wrapped up inside. A CIRCUMMARGINATE PLACENTA is a forme fruste that's not so worrisome.

        AMNION NODOSUM is vernix caseosa embedded in the amnion. Usually there's oligohydramnios. It should not be confused (though some do) with the harmless squamous metaplasia you can see here especially near the insertion of the cord.

        Any amniotic bands?

        Green? Meconium or pus, less likely biliverdin from an older bleed.

          * Meconium itself does not produce inflammation. It means the child has had a bowel movement, usually from being in distress. If this happened a while ago, there will be a foreign body reaction around the meconium. Remember that the child may also have inhaled meconium ("meconium aspiration").

        Peculiar odor: Infection. Listeria may smell sweet, others will be malodorous.

      Cord:

        Usually 55-60 cm, 2.0-2.5 cm across. Less than 40 cm or more than 70 cm send to pathologist. There may be true knots, or an artery may twist and make a false knot. A very twisted cord can supposedly compromise blood flow, but most babies with "telephone cord cords" seem fine. Check the number of vessels (two arteries and a vein) near the baby, since the artieries often fuse near the placenta.

        VELAMENTOUS INSERTION is a cord attached to the membrane but away from the placenta. It occurs in maybe 1% of placentas and supposedly places the child at greater risk.

SPONTANEOUS ABORTION

    Around 1 known pregnancy in 6 ends with miscarriage (i.e., loss of the child before 20 weeks). The true number of lost conceptions is undoubtedly higher as they are very early (i.e., "the period is late").

      Loss of the child in the second trimester is uncommon; as with earlier loss, finding the cause is seldom easy (Am. Fam. Phys. 76: 1341, 2007). However, it's now fairly clear that just as in preterm birth, histologic chorioamnionitis, bacterial infection, and viruses are important causes (Am. J. Ob. Gyn. 195: 797, 2006) -- and of course "intimate partner violence" (Lancet 373: 278, 2009).

    About half of miscarriages supposedly have a chromosomal abnormality. You'll go crazy trying to sort out what's known (and what's not) about the other causes, which include "failure to implant" (nobody knows how common this is), disappearance of the corpus luteum "because of other endocrine disease", "incompetent cervix", low folic acid/B6 (i.e., poor diet -- does this run with some other lifestyle-related risk factor? JAMA 288: 1867, 2002; Ob. Gyn. 100: 107, 2002), and of course antiphospholipid antibody and (especially later in the course of the pregnancy) congenitally hypercoagulable blood (NEJM 343: 1015, 2000; Ann. Int. Med. 130: 736, 1999; Factor V-Leiden is now infamous and generally the thrombophilias are well-established causes of loss of pregnancies -- "prothrombin G20210A" is evidently an exception Ob. Gyn. 115: 14, 2010). Contrary to older ideas, nowadays assisted reproductive technology probably isn't a risk for loss later in pregnancy (Ob. Gyn. 114: 818, 2009).

    If the amniotic sac ruptures early in pregnancy (perhaps from amniotic band syndrome), an astute pathologist can spot vernix (desquamated cells from the baby) in granulomas in the lost tissue.

    BLIGHTED OVUM / ANEMBRYONIC PREGNANCY features a good placenta and membranes but no baby (due to a known or unknown genetic defect -- some of these are triploid and this fades into moles). It is common and now easily recognized on ultrasound; often this is a sad surprise for a woman who think she has a normal pregnancy. The pathologist will eventually see the villi; unlike hydatidiform mole, there's atrophy rather than proliferation of trophoblast, and the edema of the villi isn't impressive.

    You already know that donated ova have a higher rate of miscarriage (about a third) even if the ovum is known to have implanted.

    Previous elective abortion (either surgical or by the increasingly-popular methods involving taking medication) do not seem to place a woman at risk for future miscarriage or ectopic pregnancy (NEJM 357: 648, 2007).

    Today there is some interest in bacterial vaginosis and chlamydia as causes of loss of the unborn child before viability (Am. J. Ob. Gyn. 183: 431, 2000; others).

    After a miscarriage, curettage of the endometrium yields necrotic tissue, often intensely inflamed with neutrophils. There will of course always be decidua, and often villi if they have not been passed.

    * Lancet 371: 290, 2008 reports that 68,000 women die yearly from unsafe abortions in countries where the procedure is illegal. Obviously, this is an estimate, and I don't understand how it was reached.

FETAL DEATH

    We have already talked about problems with the baby (hydrops fetalis, infections) that can be lethal. Disease of the placenta can obviously be fatal or damaging as well.

    No one really knows how often problems with the cord cause the child's death, but it must be fairly common.

    Often the dead child remains in the amniotic fluid for days or weeks, and pathologists can estimate the time since death of these "macerated" babies. (The unborn child is in a sterile environment and thus autolyzes rather than putrefies.) A "papyraceus" fetus is a twin who died and whose body was flattened by the other child's.

ECTOPIC PREGNANCY (Am. Fam. Phys. 72: 1707, 2005)

    This occurs whenever the embryo implants someplace other than the normal intrauterine location. (Contrary to some textbooks, you're not a officially a fetus until you're eight weeks.)

    The usual location is the oviduct, though ovary, peritoneum, and uterine cornua are other known sites. Rarely an intraperitoneal pregnancy goes to term.

      Old cesarean scars are also noteworthy as sites for ectopic pregnancies (BJOG 113: 1035, 2006). In the liver: Ob. Gyn. 109: 544, 2007.

    The best-known cause is old pelvic inflammatory disease, less often scarring from endometriosis. But about half of cases in the US happen "for no reason." In countries where there is much more gonorrhea, there are many more ectopic pregnancies.

    No matter where the pregnancy is, the local cells decidualize and the child develops for a while. In a tubal pregnancy, disaster strikes at about 6 weeks after the missed period (about 8 weeks after conception). One of the following happens:

    • The placenta has invaded far enough through the wall of the tube to make it rupture, with massive internal bleeding.
    • The expanding mass passes back out through the fimbriated end of the oviduct ("tubal abortion").
    • The placenta comes off the wall of the tube, causing heavy bleeding.
    • Or the baby can simply die, and the whole gestation gets reabsorbed. Rarely the baby calcifies (a "lithopedion", or stone child).
    The pathologist can help make the diagnosis in a woman who may be bleeding, by finding decidualized endometrial tissue with no villi.

    Treatment is surgical. Or if an ectopic pregnancy is known to be present but has not ruptured, methotrexate can end it.


{00102} tubal pregnancy, gross
{40140} ectopic pregnancy, gross
{40365} ectopic pregnancy, gross

Ectopic pregnancy

WebPath

Ectopic pregnancy

KU Collection

Ectopic pregnancy
GIF animation
WebPath

Ectopic pregnancy, ruptured

WebPath

Ectopic pregnancy, ruptured

WebPath

Ectopic pregnancy

WebPath

Ruptured Ectopic Pregnancy
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery

Ectopic pregnancy
CDC
Wikimedia Commons

9 week fetus
Ectopic pregnancy
Wikimedia Commons

    * Click here for the bizarre way in which ectopic pregnancies must be handled in El Salvador, where it is illegal to end the life of an unborn child EVEN to save the mother's life and even though the child's chances of being born are zero.

PROBLEMS IN LATE PREGNANCY

    You will learn about the problems in advanced pregnancy while you are on "OB".

    Many of the problems that develop toward the end are caused by problems with the umbilical cord. Of course, if the cord is compressed enough to occlude the veins, the child is in grave danger. This includes slip knots, cord around neck, or cord being compressed by the child's head against the cervix.

      These are among the causes of "late decelerations" and so forth observed on fetal monitoring. If you, the child, are not getting enough oxygenated blood after a contraction has been going on for a while, your heart may slow.

    Infections (strep, gonorrhea, listeria, others) can involve the membranes, causing them to rupture early. Sexual intercourse late in pregnancy can promote these infections. Or a leak may "just happen", producing oligohydramnios sequence and/or fetal loss depending on the timing.

    Infections can pass through a ruptured membrane and produce inflammation of the amnion (amnionitis) and cord (funisitis). Common bacteria (a pathologist can spot fusobaterium using a silver stain) can infect the placenta (villitis, chorioamnionitis), as can syphilis, toxoplasmosis, and TB. If you see granulomas, think of listeria. A chlamydia infection is likely to produce red eyes in the newborn. The one established fungal culprit is candida (look for classic "thrush" on the umbilical cord). In malaria zones, involvement of placenta often permanently damages the baby (Hum. Path. 32: 1022, 2001). Thankfully there's not much brucellosis in the US any more.

    ABRUPTION OF THE PLACENTA is a huge bleed between the placenta and the wall. It is among the most dreaded obstetrical complications.

    PLACENTA PREVIA occurs when the placenta covers the lower uterine segment over the cervical outlet. This can cause premature labor by affecting the placenta. As the cervix dilates, bleeding occurs.

{15876} abruption of the placenta, sectioned in situ

    PLACENTA ACCRETA is a portion of placenta that lacks decidua, adhering instead directly to the myometrium. This is mostly a problem because after birth, the placenta will separate only with difficulty and there will be bleeding. One known cause is an old cesarean scar.

      PLACENTA INCRETA is deep into the myometrium. PLACENA PERCRETA is through the myometrium.

    Placenta accreta

    WebPath

    You remember the mnemonic for the infections of the unborn child:

      T: Toxoplasmosis
      O: Other (syphilis, TB, listeria)
      R: Rubella
      C: Cytomegalovirus
      H: Herpes simplex II

    * Pathologists are just now starting to examine placenta changes in children with cerebral palsy, and the results are not very surprising: clots, partial abruption, inflammation, widespread infarction (Arch. Path. Lab. Med. 124: 1785, 2000).

    * Fun to know: Cesarean section means "to cut". It has nothing to do with Julius Caesar or laws that he passed. Even in ancient times, it was routine to take the child by C-section when it was obvious the mother would die.

    * The old rule was, "Once a cesarean, always a cesarean." In the early 1990's, politics for some reason dictated that "every women deserves a trial of vaginal delivery no matter how many cesarean sections she's had previously". This became a "cause for women's advocates" who distributed "informational literature", and then became a mandate by practice groups and third-party payers. And as any reasonable person would expect, it led to a great many catastrophic deaths (uterine rupture, placenta accreta, amniotic fluid embolization). For an account of the fiasco, see ACOG Practice Bulletin 104: 203, July 2004. Today, the practice recommendation is that as long as there's been only one cesarean section, and it was with a low-transverse incision (or maybe a lower-segment vertical incision), and resuscitation is available in case of disaster, the woman should be given a CHOICE of a trial of vaginal delivery. DON'T try vaginal delivery if there was a classical incision used for the cesarean section.

Rubella of the placenta
Advanced students
Yutaka Tsutsumi MD

CMV of the placenta

Yutaka Tsutsumi MD

TWINS

    Think about it.

      One chorion, one amnion: No membrane separates the children. They must be monozygotic (identical) twins.

      One chorion, two amnions: A membrane separates the children, but it contains only an amniotic layer, not a chorionic layer. They must be monozygotic twins. Okay, there was one reported exception: NEJM 349: 154, 2003 (in vitro fertilization, donor oocytes).

      Two chorions: A membrane or two separates the children, and contains both chorion and amnion. They may be monozygotic or dizygotic (fraternal) twins. Dichorionic placentas can be separate or fused.

    The major hazard is a one-way channel between the twins' umbilical cords. This causes twin-twin transfusion syndrome. The twin who gets the blood will be big and can die of circulatory overload. The twin who loses the blood will be small and can die of anemia. Repairing it in-utero: Am. J. Ob. Gyn. 198: e4, 2008.

    An "acardius" is a very malformed fetus with no heart. It can survive if it is anastomosed to a normal twin.


{15651} twin placenta
{39022} twin placenta, gross
{39989} monochorionic monoamniotic twin
{15709} in utero death of a twin

Stillborn twin


TOXEMIA OF PREGNANCY (Am. Fam. Phys. 70: 2317, 2004)

    Somewhere in the world, a women dies every three minutes from causes related to toxemia of pregnancy (Curr. Op. OB-Gyn, 14: 119, 2002). Long a major mystery of medicine, the mystery of toxemia of pregnancy is just now being clarified.

    The key molecule is sFlt1 (now "soluble vascular endothelial growth factor receptor-1, sVEGFR-1), a tyrosine kinase that binds to VEGF and other factors. This ends up having a variety of actions on blood vessels, including inhibiting their growth and causing them to leak (J. Clin. Inv. 111: 600, 649, & 707, 2003; NEJM 350: 672, 2004; Hypertension 55: 689, 2010). Ordinarily, this is the "brakes" on vascular proliferation late in pregnancy. In toxemia of pregnancy, it appears too soon.

    The process begins when the placenta becomes ischemic. Poor trophoblastic invasion, insufficiency of the uterine arteries, or goodness-knows-what sets it up. Once begun, a vicious cycle starts. Something (evidently sFlt1) is released by the ischemic placenta that causes endothelial swelling (raising blood pressure) and leakage (proteinuria and edema), and damage sufficient to produce DIC. All of this is pre-eclampsia.

      * This seems pretty well established; a United Nations panel has accepted it as the best direction for further study: Ob. Gyn. 109: 168, 2007).

    When the woman has had a seizure, it's "eclampsia" and the mother and baby are both at grave risk.

    Risk factors include hydatidiform mole, twins, diabetes, obesity, malnutrition (selenium deficiency? Am. J. Ob. Gyn. 189: 1343, 2003), high blood pressure, kidney disease, and the thrombophilias (for the last, see Am. J. Ob. Gyn. 200: 46.e1, 2009). Newly-recognized is (maybe!) vitamin D deficiency (J. Clin. Endo. Metab. 92: 3517, 2007). Most often it happens during the first pregnancy.

      The placenta &/or unborn child's physiology probably contributes something, since if Dad is the product of a pregnancy with pre-eclampsia, the risk is double (NEJM 355: 867, 2001).

      Further, lethal disease in one twin is likely to cause pre-eclampsia that can be cured by destroying the affected twin to permit safe continuation of the remaining twin's gestation to term (Am. J. Ob. Gyn. 191: 477, 2004).

      * Perhaps the reason that it occurs most often in the first pregnancy is the finding (awaiting confirmation) that women who have had very little (<4 months) exposure to semen are at much greater risk (Am. J. Ob. Gyn. 188: 1241, 2003). Can you think of why this makes sense? Remember that half of the placental antigens are contributed by Dad. If you are not prudish, see J. Repro. Imm. 46: 155, 2000 for a correlation between a popular practice between husband and wife and how it seems to protect from pre-eclampsia.

    Pre-eclampsia is considered non-preventable, but restricting sodium, resting, and maybe prescribing antihypertensive medications can stave off eclampsia.

    Don't worry about "the usual suspects" produced by the ischemic placenta -- thromboxanes, angiotensin, endothelium, and so forth.

    The morphology is distinctive.

    • There are bleeds in the liver and under its capsule. The portal capillaries contain fibrin thrombi and there are patches of necrosis, mostly adjacent to the portal areas.
    • The glomeruli display spectacular swelling of the endothelial cells ("endotheliosis"), and scuz composed of fibrin and platelets between the endothelial cells and the basement membrane. The fenestrae are smaller or obliterated. (It's not totally specific for pre-eclampsia / eclampsia, and can show up in normal pregnancy: BJOF 110: 831, 2003).
    • The walls of the uterine arteries fill with lipid ("atherosis") and may undergo extensive fibrinoid necrosis.
    • Infarcts in the placenta are likely to be large and/or numerous.
    • In the worst cases, you can see microthrombi throughout the vascular system.
    • Update on the histopathology: The clincial correlation with the pathology is so-so (Am. J. Ob. Gyn. 194: 1050, 2006).

        * A Dutch group that does a lot of sampling of chorionic villi has reported that first-trimester pregnancies where the vessels are close to the intervillous space are more likely to go onto toxemia (Am. J. Ob. Gyn. 202: 88e, 2010).

    Delivery is curative.

    When there is also hemolysis, elevated liver enzymes, and low platelet count (findings that typically run together), we make the additional diagnosis of HELLP SYNDROME. I've predicted that the placenta produces some toxic factor that remains to be discovered; there is now a report that it is CD95, the fas ligand (Gastroent. 126: 849, 2004) and/or endothelin-1 (J. Clin. Endo. Metab. 90: 4205, 2005). There are more players as well, and the process is obviously a complex mix of problems (Am. J. Ob. Gyn. 194: 317, 2006).

ACUTE FATTY LIVER OF PREGNANCY

    This dread, thankfully rare illness seems to be caused by carrying a child with recessively-inherited mitochondrial disease of fat metabolism (JAMA 288: 2163, 2002), also possibly etiologic in HELLP syndrome.

HYDATIDIFORM MOLE

    This is the most common of the diseases of trophoblast of pregnancy ("gestational trophoblastic disease").

    About one pregnancy in 1000 in the US is a mole. It's much more common in China and Southeast Asia.

    A hydatidiform mole looks like a mass of grapes, as each villus swells up. The pathologist will see villi with very poor or absent blood vessels (i.e., mostly just myxoid stuff; after all, there is no fetal heart to perfuse the chorionic vessels) and a lot of edema. The amount of trophoblast on the surfaces is variable and probably means nothing.

      "Complete" or "classic" moles have no associated baby, and the villi are uniformly swollen. The surrounding trophoblast is hyperplastic, growing in sheets. They have all the chromosomes from the father ("diandrogenetic"; "daddy's girl"), and are 46XX (usually, two sperms or a duplicated set from one sperm) or (much less often) 46XY (two sperms).

      "Partial" moles (twice as common as classic moles) have unevenly swollen villi, trophoblastic proliferation is minimal, they may have a non-viable baby with them, and they are 69,XXY or 69,XXX. The extra set can come from either parent.

      The two lesions can't always be distinguished histologically. A triploid mole is much less likely than a diploid mole to go on gestational trophoblastic disease (Cancer 100: 1411, 2004). Update on the clinical features: BJOG 114: 1273, 2007.

      * You can be a good doctor without knowing the karyotypes of hydatidiform moles, but it's a triumph of science and a favorite trivia question. Future truly hardcore pathologists: You can tell a partial mole from a complete mole because the former stains with a p57 that is only expressed from the maternal chromosomes (Am. J. Surg. Path. 25: 1225, 2001).

    Usually the uterus is larger than it should be, and bleeding and loss occurs in the fifth month. If the serum hCG levels have been monitored, they are higher than normal.

    Once delivered, the only risk is that an invasive mole or choriocarcinoma may develop. This will be announced by persistent elevations of hCG after the mole is gone.

      Around 10% of complete moles go on to cause gestational trophoblastic disease (i.e., invasive mole or choriocarcinoma), but only about 1% of partial moles.


{27062} hydatidiform mole, histology
{08921} hydatidiform mole, histology
{08922} hydatidiform mole, histology
{18785} hydatidiform mole

Partial mole

WebPath

Parital mole

WebPath

Big uterus with mole

WebPath

Mole

WebPath

Mole

WebPath

Mole

WebPath

Mole

WebPath

Partial mole

WebPath

Partial mole

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INVASIVE MOLE ("chorioadenoma destruens")

    This is hypertrophic trophoblast with at least some villi, penetrating deep into, and maybe through, the uterine wall, following a hydatidiform mole. Villi may embolize but not metastasize (i.e., they won't grow into tumors at remote sites). This lesion is benign and will regress, and is now easily cured by chemotherapy. The major danger is uterine hemorrhage while the disease is active.

CHORIOCARCINOMA

    This is vicious cancer of the trophoblast. The greatest risk is following a hydatidiform mole, but any pregnancy (term, ectopic, miscarriage, abortion) can rarely give rise to "chorio".

    Grossly, the tumor is mushy and ultra-bloody (since trophoblast by its nature invades blood vessels). The tumor has always disseminated widely by the time it is diagnosed.

    Microscopically, there will be no villi. The pathologist will see cytotrophoblast and syncytiotrophoblast, usually in alternating layers.

    Formerly, this was uniformly lethal. Today, the large majority are cured with chemotherapy.


{25185} choriocarcinoma, gross (looks like ketchup)
{49378} choriocarcinoma with right ovary, gross
{49379} choriocarcinoma, gross
{25186} choriocarcinoma, histology
{25187} choriocarcinoma, histology
{27056} choriocarcinoma, uterus, histology
{27059} choriocarcinoma, uterus, histology
{40660} choriocarcinoma, histology

Choriocarcinoma
Classic drawing
Adami & McCrae, 1914

Choriocarcinoma

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Choriocarcinoma

Tom Demark's Site

    * There are several other lesions involving gestational trophoblast. Leave their diagnosis to us. "Exaggerated placental site" is a non-problem. "Syncytial endometritis" / "placental site nodule" calls for serial hCG measurements but usually causes no trouble. "Placental site trophoblastic tumor" is composed of variant trophoblastic cells and produce human placental lactogen (and maybe don't produce hCG). It usually follows a normal birth, lacks the anaplasia of a real choriocarcinoma, and produces a distinctive glomerular lesion with fibrin and IgM in the loops (Ob. Gyn. 114: 465, 2009) Some choriocarcinomas take the forms of other familiar carcinomas, especially squamous.

{47859} pregnant

* Acupuncture and other "alternative" medicines (with the exception of black cohosh and phytoestrogens) completely fail for relief of menopausal syndromes (Ann. Int. Med. 137: 805, 2002).

* Politics

When politicians get involved, the real losers are usually ordinary, decent folk. As physicians, you are called to bring reason and science into public discussions. Again, the following "women's health issues" unit is non-testable.

ESTROGEN REPLACEMENT: In summer 2002, the first big prospective randomized study of the health effects of estrogen-progesterone replacement was stopped early because the treatment group was having more cardiovascular problems and breast cancer than the controls. Especially the cardiovascular effects were opposite to the "conventional wisdom" that replacement is beneficial. If the conventional wisdom is indeed incorrect, perhaps it reflects that women who go to the doctor more often are both healthier and more likely to receive hormone replacement. Gee whiz. Watch this business. Another study found that replacement increases the risk for venous thrombosis and gallstones (JAMA 288: 99, 2002), without much beneficial effect on fracture risk. The fact that there wasn't an impressive impact on fractures obviously results from the study covering only a few years, which was stupid, and the slightly higher mortality rate in the treated group doesn't look statistically significant. The media parlayed this into estrogens causing tremendous cardiovascular risk, and there will be trouble for the next several years over this.

THE BENDECTIN FIASCO: The United States pays the price for its tort system and ignorance of science.

In 1983, the best drug for severe nausea and vomiting of pregnancy (doxylamine, marketed with pyridoxine as "Bendectin" by Merrell-Dow) was withdrawn because of lawsuits alleging the medicine had caused babies to be born deformed.

The hoopla followed an exposé in The National Enquirer (1979). The principal researcher alleging that Bendectin was a teratogen was denounced by his own co-workers as a blatant fraud (JAMA 263: 1468, 1990). Other animal studies supposedly demonstrating teratogenicity found similar effects for sugar and tap water, but could not show a teratogenic effect for thalidomide (JAMA 264: 569, 1990). The NIH epidemiology found no link whatever (Teratology 40: 151, 1989). I found a single recent abstract (89300349) alleging a link, and it is an sorry effort from the former Soviet Block, where there has been no real biology since nature-mystic Thaddeus Lysenko oversaw Stalin's extermination of his country's honest biologists. However, as late as mid-1994, a jury awarded $19 million to a kid whose mother (Ms. Daubert) took Bendectin; the kid's only problem was common clubfoot. Last case thrown out: Science 267: 167, 1995.

Almost all the other lawsuits were unsuccessful, but had placed a tremendous burden on the corporation. The whole business went to the Supreme Count, which in 1993, in a solid, landmark decision ("Daubert vs. Merrell Dow"), required judges to bar junk science from their courtrooms (JAMA 270: 423 & 2964, 1993; Science 261: 22, 1993, thanks Mr. Justice Scalia). Good luck. Nowadays, nobody is going to market a drug for use by pregnant women, or a vaccine, or anything else that invites silly lawsuits. As usual, it is the people who are really sick who suffer.

THE PAP SMEAR FIASCO: The United States pays the price for its tort system and ignorance of the limits of screening.

The pap smear for cervical cancer was designed as an inexpensive screening test. The key was "inexpensive". The consensus among pathologists is that a 10% false-negative rate is quite acceptable, and if it's that low, probably even good practice. (College of American Pathologists, cited in Path Yearbook 1994 p. 42). The idea was that the test should be repeated frequently, in case the technician misses a few cancer cells on one slide.

Unfortunately, the lawyers and militants got into the act in the mid-1980's. ("Murderers" missed a few cancer cells on pap smears; this is likely to be fatal only if the women aren't screened as often as they should be.) The price of a "pap smear" rose from $5 to over $50 because of all the regulations; I haven't seen anything to suggest that quality is better, and "to save money", lots of gynecologists switched to a one-slide specimen, which means less sensitivity but much better cover-your-butt. The result, of course, was that the test became unavailable to the underclass women who are at greatest risk, and the rate of invasive cancer of the cervix has increased. See Med. Care. 30: 1067, 1992; Acta Cytol. 36: 461, 1992.

FEMALE GENITAL MUTILATION: ("female circumcision"); Women in the world's poorest nations suffer, while the rich nations ignored a horrible problem for ideological reasons.

The custom is most common in Africa, where some people believe it ensures a woman's chastity and, after she is married, her fidelity by reducing sexual pleasure.

          -- Br. Med. J. 313: 1103, 1996.

Until 1992-4, the abominable practice of female circumcision was a taboo subject, thanks to the politics of the era. In 1994, the medical literature (until then, strangely silent) suddenly was filled with physicians saying the obvious: FEMALE CIRCUMCISION IS A CRIME AGAINST HUMANKIND.

What is female circumcision? It's a "cultural practice" to which around 100,000,000 living human females have been subjected, mostly in Africa north of the equator. For example, almost every human female in Somalia is circumcised. It involves the surgical amputation of the clitoris, sometimes with the surrounding tissue, part or all of the labia majora, and/or the labia minora. Sometimes the introitus is sewn shut with needle and string, and the new husband cuts the string when he buys the wife. It's usually performed on children, often with no anesthetic. What's the basis for this "cherished traditional cultural practice"? The intent, of course, is to make the girl less interested in sex, and less able to do it, so that she will be a virgin when she is ready to marry and will therefore get more money for her parents.

Complications include huge dermoid cysts arising in the scar, loss of sexual pleasure, inability to menstruate, inability to have intercourse, pelvic and back pain, chronic pelvic infections leading to stones and hydroureters, stitch abscesses, traumatic neuromas, reopening of the incisions, pain on intercourse, vesicovaginal fistulas (dribble continuously), and catastrophic problems with delivery of children. Every one of these is common. Unlike male circumcision, there are no health benefits whatsoever. Opposition to female circumcision comes from mainstream Islam (Saudi Medical Journal 21: 921, 2000, thanks) and Christianity, and even the WHO, which in 1992 (after knowing about the problem since its founding, of course) finally condemned it officially (Eur. J. Ob. Gyn. 45: 153, 1992). Here's a reading list on female circumcision, including a few pieces by Leftists who ask, with a straight face, whether concern for health can ever override "multicultural sensitivity":

  • NEJM 331: 712, 1994 (godawful pictures, review article)
  • Can. Med. Assoc. J. 148: 288, 1994 ("when medical ethics confronts cultural values"); follow-ups 149: 16 & 1382, 1994.
  • Br. J. Ob. Gyn. 101: 92, 1994
  • Am. J. Ob. Gyn. 169: 1616, 1994
  • Holistic Nursing Practice 8: 70, 1994
  • J. Postgrad. Med. 38: 136, 1994
  • Soc. Sci. Med. 33: 637, 1994 (even these folks, who are generally far-left-wing, are suddenly against female circumcision)
  • Lancet 352: 126, 1998: The women of Africa replace the knife with "circumcision by words", a coming-of-age ceremony for their daughters.
  • KC Star May 3, 1996, front page. Women claim political asylum, saying that if they are returned to Togo, they will be forcibly circumcised. Includes some very curious statements by proponents of this "cultural practice".
  • Lancet 351: 121, 1998: Egypt finally makes the practice illegal. Its "conservative moralists" are outraged.
  • Lancet 356: 137, 2002. Ethiopian tribes are still doing it.
  • Plastic and laser surgeons are able to help these women: Am. J. Ob. Gyn. 187: 1550, 2002.

    More changing times: Only during the mid-1990's did it become politically acceptable in the USA to talk about the endemic of violence against women in sub-Saharan Africa. The problem was and is unbelievable: JAMA 279: 625, 1998; Lancet 371: 15, 2008 (rape as a weapon to demoralize civilian populations in collapsed society of the former Belgian Congo); Lancet 373: 1966, 2009 (one girl in three in Swaziland suffers sexual violence before age 18, often by family, friends-of-family, or in school.) Ninety-one Sudanese women who had been rendered totally fecal-incontinent from sexual violence: Lancet 354: 2051, 1999. "What are the human rights of a teenager who is the third wife or a man the age of her grandfather who will not allow her to use contraception even though her last confinement nearly killed her?" (Br. Med. J. 321: 570, 2000). In some communities in Pakistan, it is considered "honorable" to kill your daughter if she wants to make her own choice about who she marries (BMJ 338: b1221, 2009); there are dozens of such killings each year. It seems to me that "cultural practices" or no, something is wrong if it interferes with people's health. The Taliban's oppression of women, and the resulting impact on women's health, was frightful: JAMA 280: 449, 1998. The extent of Saddam's organized violence against women, especially against Shi'a women between 1991 and 1993, is astonishing (JAMA 291: 1471, 2004).

ATTENTION TO WOMEN'S PROBLEMS: Right or wrong, it's human for each individual to interact differently with males and females, even when pursuing gender-neutral activities, and in this regard, every human being's behavior is different. Where things go wrong is when fairness is compromised, as in the old days, when medical schools wouldn't take women "because they'll just get pregnant and then never practice." That really happened, and happened frequently. Things are better since the 1950's ended, at least in this regard. Thankfully it's now possible to punish those who really commit sexual harassment, which has historically been the bane of a professional woman's existence, in the health-care setting and otherwise. But there's still a tendency by physicians to thoughtlessly ignore health problems specific to women. In one chart review (at an M.D. institution, mind-you), housestaff (male and female) doing history-and-physicals almost never asked about pap smears, mammograms, or breast self-exam, and were only half as likely to do breast exams (35%) as to do a rectal (70%). When I was a med student, I was, to my knowledge, the only one who discussed breast self-exam with every adult female patient. See Academic Medicine 68: 698, 1994. There's plenty of evidence now that women get under-treated, or at least get less treatment for the same things, as do men. See, for example, Am. J. Psych. 150: 1309, 1994 (on being human, as well as disparities in care), JAMA 268: 1872, 1994 (women alcoholics get less care than men), Arch. Int. Med. 152: 972, 1994 (women with myocardial infarcts get treated less aggressively; the latter effect might be due to women being better protoplasm and less sick than men: NEJM 330: 1101, 1994). Hip arthroplasty: NEJM 342: 1016, 2000. Reperfusion in heart attack: NEJM 342: 1094, 2000. Docs: Unless you want Uncle Sam to get involved, you need to do something about this yourselves. And this should come as no surprise: In India, where most families supposedly want sons rather than daughters, three girls die of diarrhea for every boy (Br. Med. J. 327: 126, 2003). South India has by far the highest known suicide rate of anyplace in the world; most often, it is a young woman who commits suicide rather than be forced to marry a man she hates (Lancet 363: 1117, 2004). Women in many traditional societies commit suicide to avoid forced marriage or escape domestic violence (NEJM 358: 2201, 2008). Click here for the Archbishop of Canterbury's remarks after England passed an act protecting its women from forced marriage. This was quoted out of context by outraged militants of various kinds, result in a world news story.

IN-VITRO FERTILIZATION: Some people say it's your inalienable right to have Uncle Sam pay for it, while for others, it's anathema on religious-ideological grounds. Averages: To get one born baby when all the factors are favorable, somebody will pay $50,000 if it works the first try; when there's male-factor infertility and five previous failures, the cost is $800,000 per baby (NEJM 331: 239, 1994). I bet third parties (Uncle Sam, managed care) won't pay for this.

FETAL MONITORING is fancy-tech, and since it's available, the savvy physician has to use it to cover his butt. However, the benefits to the human race are by no means apparent, and people are finally getting up the courage to say so (Can Med. Assoc. J. 148: 1737, 1994; J. Fla. Med. Assoc. 78: 303, 1994). Even the American College of Obstetricians and Gynecologists has come out with a statement that listening occasionally with the stethoscope is every bit as good as hooking up a monitor (Ob. Gyn. 76: 1130, 1994; this has held up). There are more muddy-the-waters technologies on the horizon; there's no reason yet to think they'll do much to help patients, though they'll surely increase health-care expenditures and incomes (Curr. Op. Ob. Gyn. 5: 647, 1994; Br. J. Ob. Gyn. 100: 733, 1994). One fancy intervention ("home fetal monitoring") didn't seem to do much that simply explaining things to the patient didn't (Am. J. Ob. Gyn. 164: 756, 1994). This trend has continued to the present; in the "managed care" era, the decisions of obstetrician-gynecologists about which technologies to use are a curious subject (Am. J. Ob. Gyn. 188: 162, 2003); a Canadian group points out the obvious fact that "defensive medicine" can itself generate income for physicians (Soc. Sci. Med. 51: 523, 2000), etc., etc. Especially welcome is the loss of the fetal scalp blood monitor as a standard of care.

Androgens for female sexual dysfunction / low libido: Mayo Clin. Proc. 79(4S): S-19, 2004. No joke -- when one partner loses interest in sex, the effect on a marriage is often devastating.

Goya The Disasters of War
Goya's sketch of women resisting

For more on the vile crime of RAPE, check the current literature. There are around 20,000 convictions per year in the USA for adult rape, and 23,000 for child sexual abuse. Examining and treating the woman who has been raped: NEJM 332: 234, 1995; Ped. Clin. N.A. 46: 809, 1999. Dudes: Forcing yourself on an unwilling woman is the most un-masculine thing you can do. Most rape is committed by an acquaintance, and (despite what's below) I suspect most rapes go unreported, which is bad. "Roofies" is flunitrazepam ("Rohypnol"), which when added to her drink makes rape easy (review South. Med. J. 93: 558, 2000). One bizarre article even cites industry-specific rates for being raped by a co-worker (Am. J. Pub. Health 84: 640, 1994). Under the common law, a husband may lawfully penetrate his wife without her consent; this is changing. The serial rapist generally starts shortly after puberty, as a stupid-hurtful way of expressing anger. The first victim is usually an acquaintance. In most jurisdictions, rape means putting any part of his penis into any part of her body without her consent. He doesn't have to have an erection, he doesn't have to ejaculate, it doesn't have to be her vagina, it doesn't matter if she's known to be easy, or if she consented last night, or if she happily took off her clothes and got in bed with him, or was petting for a long time, or if she just teased him, or said she would and then changed her mind, etc., etc. A man can get raped, too. A mentally-retarded or very crazy person cannot lawfully consent, no matter what her age. Dudes: if she changes her mind later, and says you raped her, it's her word against yours. Nowadays, the law and public opinion are stacked against you in this (and many other situations, too) simply because you are a man. For example, a judge isn't even allowed to remind a jury that it's easy to bring a false accusation or rape, and hard to defend against it, and the defense may not even be allowed to present evidence that a particular woman had already made a previous false allegation "because it might inflame the jury" (Arkansas Supreme Court, Ralph Taylor). "Rape shield laws" forbidding any discussion of the accuser's previous sexual history have been interpreted to include the accuser's currently facing criminal charges for having consensual sex with minors (Charles Steadman, 1993). In some juristictions, the law specifically allows that a man can be convicted of rape solely on the uncorroborated testimony of an accuser, without any physical evidence whatsoever. This results from litigation from the 1970's prompted by militants, including the author of "Against our Will: Men, Women, and Rape", whose mentality is illustrated by her statement that rape is "nothing more or less than a conscious process of intimidation by which all men keep all women in a state of fear." Be careful, dudes, especially around people you don't know aren't "fantasy-prone" or worse. However, until 1994, the subject of "factitious rape", i.e., a woman making a false accusation, was a forbidden subject in the medical literature for political reasons, and patently false ideology ("No woman would lie about something so personal"; "The FBI has proof that only a few percent of claims are false", etc., etc.) dominated discussion. We have known about this since the time of Potiphar's wife. A major article by the US Air Force Office of Special Investigations that got no attention at the time appeared in Forensic Science Digest 11(4): 64, December 1985; of accusations of rape brought in the Air Force, a panel of three reviewers unanimously agreed 60% were false, with many of the women recanting before or after failing a polygraph. The landmark article appeared in Arch. Sex. Behav. 23: 81, 1994. Now that we have DNA testing, it's become clear, in retrospect, that plenty of men serving prison time for a particular rape didn't do it (KC Star March 13, 1993 was the first in what has now become a frequent feature of new stores.) The now-classic 1996 article from the US Department of Justice "Convicted by Juries, Exonerated by Science" cited a statistic of 25% for cases in which DNA specifically excludes the accused; this does not include those for which results are indeterminate, and of course it does not exclude the possibility that the sex was consensusal (remember the defense in the Kobe Bryant case). By 2008, there have been over 200 convictions overturned -- all men were serving long prison terms. This is in keeping with my own experience doing exams, which range from godawful cases of genuine rape to women trying to get out of a non-rape abusive situation to malicious women simply trying to get a particular man in trouble. The latter works. My reading of law articles indicates there are perhaps 33,000 false accusations of rape per year in the US, primarily against African-American men. "Rape counsellors": Before you tell her absolutely to... please be sure that.... Your lecturer doesn't take anybody's word on anything any more, in the absence of physical evidence. He also considers himself a macho-man, and hopes that the same science that should protect a man against a false claim of rape will also bring real perpetrators to justice. For "Factitious rape", see South. Med. J. 87: 736, 1994; Arch. Sex. Behav. 23: 81, 1994 (the latter found 41% of police rape accusations to be false; my informal series in 1982-3 was at least this high). Self-inflicted wounds by a women claiming to be raped: Am. J. Forens. Med. Path. 20: 374, 1999; Med. Sci. Law. 38: 202, 1998. Wood's lamp is notoriously nonsensitive and nonspecific in looking for semen: Pediatrics 104: 1342, 1999. Examining the clothing can support a claim (saving the woman a terrible ordeal) or refute a claim (saving the man a terrible ordeal) -- the authors of this paper talk about the "sensitive" politics: J. Forens. Sci. 45: 568, 2000. The false memories syndrome has produced women who accuse both family and physicians of terrible crimes -- for a case of a woman with uterine agenesis who "remembered" incest, a resulting pregnancy, and a resulting criminal abortion by a particular physician: J. Ped. Adol. Gyn. 11: 181, 1998. (A few years before, it would have been extremely difficult to defend against this accusation.) As I mentioned, you will find nothing whatsoever on this very important subject in the English-language medical literature before 1994.

Current dogma in "child sexual abuse" circles is that a normal physical exam is consistent with any manner of horrid abuse, including recent full penetration of a baby girl by an adult male's erect penis. This strange idea is based on misrepresenting the actual data from an article in Pediatrics 94: 310, 1994, rebutted Pediatrics 97: 148, 1996. The best study so far on healing of the hymen (Pediatrics 119: e1094, 2007) does document that it heals well, like the buccal mucosa, often without marks. Even an 8-month-old girl healed with only neovascularity at the site of previous transection. Of course, this makes it much more difficult to defend against a coached accusation. A problem that I have with this paper, which will be of great importance in sex-abuse trials in the years to come, is a strange selectivity in discussion of the data. Despite all the talk about how well the hymen heals, and how even the worst trauma can heal without a trace, a look at the data shows that of prepubertal girls sustaining transection/laceration (i.e., what you might expect after full penetration -- and 16 of 39 children sustained these severe injuries), the vast majority did NOT heal either smoothly, continuously, or "delicately". The medical profession needs to do something about this, now, despite the political climate.

The term "commercial sex worker", now the politically-correct term for "prostitute", was popularized by the Thai government. Free enterprise brought about "Thailand's economic miracle", which was based largely on sex tourism (Lancet 352: 246, 1998). Girls become CSW's to escape grinding poverty, and the majority pay with their lives when they contract HIV. This seems to me to be a very great evil, and not something we want to honor and dignify by changing our terminology. Thankfully, with the decline in "political correctness", the term is now changing to "trafficked women", re-emphasizing that these women lose their freedom, their dignity, and their health, especially when they are brought from the poor nations to the rich nations as sex slaves (Lancet 363: 564, 565, & 566, 2004).

In the late 1990's, some countries took my advice and made the estrogen-based morning-after pill readily available without a special prescription. It was safe and was not abused. NEJM 339: 1, 1998; a pharmacist is presently allowed to prescribe it in some jurisdictions NEJM 91: 1443, 2001; it almost became available in the U.S. in 2004 but was blocked at the last minute by right-wing politics. Now the big flap is over a pharmacist's right not to full a prescription for the morning-after pill for his/her own religious reasons. Pharmacies may also refuse to dispense out fear of being targeted by militants. For two decades, whether or not a _____ hospital can/should/must provide emergency contraception for rape victims has been an "issue" (Am. J. Public Health 91: 169, 2001); Chile made emergency contraception available for rape victims in 2004 (Lancet 363: 1707, 2004) amidst massive hoopla, anti-contraception street demonstrations, refusals of local administrators to cooperate, and the _____ leadership comparing it to genocide under Hitler and Stalin. Mifepristone (formerly RU486) as a safe, effective morning-after pill without side effects: Lancet 353: 697, 1999. For over a decade, right-wing activists made tremendous political capital off keeping this unavailable. It was legalized in the last days of the Clinton administration. Curiously, we hear nothing from the militants about banning methotrexate, which is also a reliable and convenient way of ending an unwanted pregnancy. By contrast, 97% of families in sub-Saharan Africa cannot afford even a generic contraceptive without a government subsidy (Lancet 369: 715, 2007).

* SLICE OF LIFE REVIEW

{08914} cervix, normal
{09755} cervicovaginal cytology, normal
{10271} cervix, normal
{10274} cervix, normal
{11764} uterus, normal
{11765} cervix, normal
{11766} cervix, normal
{11768} cervix, normal
{11769} breast, normal
{14949} ovary, monkey
{14950} ovary, monkey
{14965} ovary monkey (cortex), normal
{14965} ovary monkey (cortex), normal
{14966} ovary monkey (cortex), normal
{14966} ovary monkey (cortex), normal
{14967} ovary, cortex
{14968} ovary, cortex
{14969} primary follicle, normal
{14969} primary follicle, normal
{14970} primary follicle, normal
{14970} primary follicle, normal
{14971} secondary follicle, normal
{14971} secondary follicle, normal
{14972} secondary follicle, normal
{14972} secondary follicle, normal
{14973} atretic follicle, normal
{14973} atretic follicle, normal
{14974} atretic follicle, normal
{14974} atretic follicle, normal
{14975} corpus hemorrhagicum, normal
{14975} corpus hemorrhagicum, normal
{14976} corpus hemorrhagicum, normal
{14976} corpus hemorrhagicum, normal
{14977} corpus luteum, pig
{14978} corpus luteum, pig
{14979} atretic follicle, with loose pieces of granulosa
{14980} corona radiata, ovary
{14981} oviduct, normal
{14981} oviduct, normal
{14982} oviduct, normal with cilia
{14982} oviduct, normal with cilia
{14983} oviduct (uterine portion)
{14984} oviduct (uterine portion), arrow indicates oviduct
{14985} endometrium secretory, normal
{14985} endometrium secretory, normal
{14986} endometrium secretory, normal
{14986} endometrium secretory, normal
{14987} endometrium secretory (glycogen stain)
{14988} endometrium secretory (glycogen stain) glycogen stain
{14989} vagina, normal
{14989} vagina, normal
{14990} vagina, pap smear
{14991} vagina, pap smear
{15091} vagina, normal
{15091} vagina, normal
{15098} uterus, normal
{15098} uterus, normal
{15099} uterus, normal
{15099} uterus, normal
{15779} female genital organs unfixed, normal
{15780} vagina, normal
{15782} ovary and fallopian tube, normal
{15783} ovary and fallopian tube, normal
{15784} ovary, normal
{15785} ovary, normal
{15786} fallopian tube, normal
{15787} uterus, normal
{15788} uterus, normal
{15789} uterus, normal
{15790} uterus, normal
{15866} placenta, normal
{17495} uterus, normal
{17496} myometrium, normal
{20662} ovary, normal
{20662} ovary, normal
{20663} ovary, normal
{20663} ovary, normal
{20664} ovary, primordial oocyte
{20665} ovary, primordial oocyte
{20666} corpus albicans, ovary
{20667} primary oocyte, ovary
{20668} secondary follicle, ovary
{20669} corpus albicans, ovary
{20670} secondary follicle, ovary
{20671} ovary, blood vessels
{20672} corpus luteum, ovary
{20673} corpus luteum, invading vessels
{20674} granulosa layers, ovary
{20675} oviduct, ampulla
{20676} oviduct, ampulla
{20677} oviduct, ampulla
{20678} oviduct, isthmus
{20679} oviduct, isthmus
{20680} oviduct, isthmus
{20681} uterus, secretory endometrium
{20682} uterus, myometrium
{20683} uterus, glandular epithelium
{20684} uterus, glandular epithelium
{20685} uterus, resting endometrium
{20687} cervix, normal
{20687} cervix, normal
{20689} vagina, stratified squamous epithelium
{20788} endometrium
{20788} endometrium
{20789} endometrium
{20790} uterus, glandular epithelium
{20791} uterus, glandular epithelium
{20952} ovary
{20953} ovary, primary oocyte
{20954} ovary, primary oocyte
{20955} ovary, primordial follicle
{20956} ovary, secondary follicle
{20957} ovary, cumulus oophorus
{20958} ovary, atretic follicle
{20959} ovary, granulosa cells
{20960} ovary, corpus luteum
{20961} oviduct, ampulla
{20962} oviduct, peg cells
{20963} oviduct, isthmus
{20964} uterus, secretory
{20965} uterus, resting
{20966} cervix, squamocolumnar junction
{20967} vagina
{24446} fallopian tube, normal
{24666} placenta, normal
{25778} side-by-side arrangement, normal endocervical cells
{25788} honeycomb arrangement, endocervical cells - normal presentation
{25824} ciliated cells, endocervical cells (normal)
{25873} stratified squamous epithelium, normal cervix
{25875} superficial & intermediate squamous cells; normal pap
{25878} transformation zone, normal cervix
{25879} squamous & endocervical cells, pap smear - normal
{25888} endometrial cells - normal
{25891} endometrial cells - normal, stromal cells
{25893} endometrial cells - normal, stromal cells
{27128} ectocervix, normal glycogenated epithelium
{29291} endometrial cells, normal
{29294} endometrial cells, normal
{39421} trophoblast, normal
{39422} placenta, normal
{39423} trophoblast, normal

BIBLIOGRAPHY / FURTHER READING

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