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Cyberfriends: The help you're looking for is probably here.
This website collects no information. If you e-mail me, neither your e-mail address nor any other information will ever be passed on to any third party, unless required by law.
This page was last modified July 5, 2010.
I have no sponsors and do not host paid advertisements. All external links are provided freely to sites that I believe my visitors will find helpful.
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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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.
Numbers in {curly braces} are from the magnificent Slice of Life videodisk. No medical student should be without access to this wonderful resource.
pathology.org -- my cyberfriends, great for current news and browsing for the general public
EnjoyPath -- a great resource for everyone, from beginning medical students to pathologists with years of experience
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:
My home page
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!
LEARNING OBJECTIVES:
Cervix:
Endometrium / Myometrium:
Give a full account of the etiology, pathogenesis, and clinical correlates of each of the following,
and recognize grossly and/or microscopically as appropriate:
Oviduct:
Ovary:
List each of the three categories of primary ovarian tumors, and for each of these,
the principal tumors and their distinguishing anatomic and clinical features,
risk factors, paraneoplastic syndromes, biological behavior,
and patterns of spread if applicable.
Mother and Child:
Describe how examining the placenta can sometimes help determine
whether twins are identical or fraternal.
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".
-- Alexis de Tocqueville 1789
Never try to impress a woman because if you do, you'll have to keep up that standard for the rest of
your life.
-- W.C. Fields
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.
-- Anonymous
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.
I am presently adding clickable links to
images in these notes. Let me know about good online
sources in addition to these:
MedEdPORTAL -- American Association of Medical Colleges. Primarily for medical school faculty.
Pathology Education Instructional Resource -- U. of Alabama; includes a digital library
Pathopic -- Swiss site; great resource for the truly hard-core
Syracuse -- pathology cases
Alabama's Interactive Pathology Lab
"Companion to Big Robbins" -- very little here yet
Alberta Tumor Photos -- and lots more. Highly recommended.
Bristol Biomedical
Image Archive
Chilean Image Bank -- General Pathology -- en Español
Chilean Image Bank -- Systemic Pathology -- en Español
Connecticut
Virtual Pathology Museum
Australian
Interactive Pathology Museum
Semmelweis U.,
Budapest -- enormous pathology photo collection
Iowa Skin
Pathology
Loyola
Dermatology
History of Medicine -- National Library of Medicine
KU
Pathology Home
Page -- friends of mine
The Medical Algorithms Project -- not so much pathology, but worth a visit
National Museum of Health & Medicine -- Armed Forces Institute of Pathology
Telmeds -- brilliant site by the medical students of Panama (Spanish language)
U of
Iowa Dermatology Images
U Wash
Cytogenetics Image Gallery
Urbana
Atlas of Pathology -- great site
Visible
Human Project at NLM
Karolinska Institutet -- pathology links
Johns Hopkins CPC's
U. of Virginia Case Studies
Oklahoma Teaching Cases
Indiana U. Teaching Cases
SUNY Histopathology
West Virginia Case of the Month
Upstate NY Cases -- works only on some browsers
Society for ultrastructural pathology -- electron microscope cases
PathologyPics -- where pathologists share favorite images. Thanks!
WebPath:
Internet Pathology
Laboratory -- great siteEd Lulo's Pathology Gallery
Also:
Bryan Lee's Pathology Museum
Dino Laporte: Pathology Museum
Tom Demark: Pathology Museum
Path Consult -- great photos and text for more advanced learners
Medmark Pathology -- massive listing of pathology sites
Estimating the Time of Death -- computer program right on a webpage
Pathology Field Guide -- recognizing anatomic lesions, no pictures
St.
Jude's Ranch for Children
I've spent time there and they are good. Write "Thanks
Ed" on your check.
PO Box 60100
Boulder City, NV 89006--0100
More of my notes
My medical students
Clinical
Queries -- PubMed from the National Institutes of Health.
Take your questions here first.
HealthWorld
Yahoo! Medline lists other sites that may work well for you
Vulva and vagina:
Give a full account of the etiology, pathogenesis, and clinical correlates of each of the following,
and recognize grossly and/or microscopically as appropriate:
Herpes simplex
![]()
Molluscum
HPV infection
Chlamydia
Garnerella
Candida![]()
Trichomonas
Syphilis![]()
Bartholin abscess
Lichen sclerosus
Condyloma latum
Condyloma acuminatum
Squamous cell carcinoma
Adenocarcinoma of the vagina
Melanoma
Extramammary Paget's
Vaginal adenosis
Gartner duct cysts
Embryonal rhabdomyosarcoma / sarcoma botryoides
Adenocarcinoma of the vagina
Give a full account of the etiology, pathogenesis, and clinical correlates of each of the following,
and recognize grossly, microscopically, and/or cytologically (i.e., on pap smear)
as appropriate:
Remember enough histology to recognize the approximate date of an endometrium,
and especially to spot anovulatory cycles, inadequate luteal phase, and persistent
luteal phase.
Chronic endometritis
Gas gangrene
Endometriosis
Adenomyosis
Endometrial polyps
The various endometrial hyperplasias
Adenocarcinoma of the endometrium and its variants
Mixed mullerian tumors
Leiomyoma and leiomyosarcoma
Give a full account of the etiology, pathogenesis, and clinical correlates of each of the following
and recognize grossly and/or microscopically as appropriate:
Give a full account of the etiology, pathogenesis, and clinical correlates of each of the following
and recognize grossly and/or microscopically as appropriate::
The common simple cysts
Stein-Leventhal syndrome / polycystic ovaries / hyperthecosis
Torsion
Autoimmune disease
Give a full account of the etiology, pathogenesis, and clinical correlates of each of the following
and recognize grossly and/or microscopically as appropriate:
Miscarriage
Ectopic pregnancy
Abruption
Placenta accreta
Placenta previa
Cord problems
Infections
Toxemia of pregnancy
Gestational trophoblastic disease (also above)
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"
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
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
GYN Pathology
Photos by Tony Racela MD (Thanks!)
Notes by Ed
Tulane Pathology Course
Great for this unit
Exact links are always changing
Dgital Atlas of Gynecologic Pathology
Meenakshi Singh, MD
Outstanding resource
GYN pathology lecture notes
U Penn Med School
Some good pictures
{47710} human female
{15787} normal internal female genitalia
We will cover breast in a separate unit.
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Primordial germ cells from the yolk sac migrate to the ovarian (or testicular) stroma. (Some of these supposedly go astray and end up in other midline structures, explaining why "germ cell tumors" arise in the retroperitoneum, pineal, and anterior mediastinum.)
In female embryos, the mullerian (paramesonephric) ducts result from infolding of the coelomic lining epithelium. They give rise to the surface epithelium of the ovaries, and the lining of the oviducts and uterus. In male embryos, Mullerian inhibitory substance from the testis makes the mullerian ducts regress.
In female embryos, the wolffian (mesonephric) ducts regress, persisting only as little bits of epithelium along the whole female tract. These give rise to "Gardner's duct cysts" along the cervix and vagina. In male embryos, the wolffian (mesonephric) ducts become the epididymis and vas.
Only the upper two thirds of the endometrium ("the functionalis") cycles. The basal third ("the basalis") does not respond to a woman's steroid hormones and stays in place, giving rise to next month's endometrium. The theca cells surrounding the follicle are ovarian stroma that nurture a particular follicle. You can tell when they have luteinized (i.e., become hormonally active) because they plump-up and become pale-staining (from the lipid used to make steroids). There are a few Leydig-like cells in the hilus, able to make testosterone.
During reproductive life, every month several (not just one) follicles mature as graafian follicles. One ovulates and suppresses the others, and becomes a corpus luteum, which will regress when the pregnancy ends or does not occur. It will be recognizable for a few months, gradually being replaced by scar tissue.
The oviduct's mucosa has ciliated cells, secretory cells, and almost-no-cytoplasm "peg cells" ("intercalated cells"). The oviduct's mucosa is thrown up into complicated folds ("plica", or "fimbria" at the end). I've been told that the reason women have orgasms is to make the oviducts wiggle around and be sure to catch the egg if it's just been released -- and especially if it's Mr. Right. Decide about that for yourself.
In late pregnancy or shortly after birth, inflammation and necrosis of the umbilical cord ("necrotizing funisitis") and severe damage to the newborn.
You are already familiar with the classic "herpes cell" seen on Tzanck preparation
or pap smears. Cells with multiple gigantic nuclei, usually bearing a
central viral inclusion
, are diagnostic.
If herpes is transmitted to the child during birth, severe sickness, brain damage, and even death are likely to occur.
HUMAN PAPILLOMA VIRUS (HPV)
Today, screening women and men for chlamydia by nucleic acid amplification techniques is becoming a standard part of routine health care maintenance; it can be done on urine. It is fairly expensive but the payoff (preventing pelvic inflammatory disease and ectopic pregnancy) is supposed to make it cost-effective. The Swedes seem to believe it's been a major health blessing; others are not so sure (BMJ 334: 725, 2007).
{11562} chlamydia, pap smear
{25911} chlamydia infection, pap smear
HEMOPHILUS DUCREYI
GARDNERELLA
You can make the diagnosis by observing that the vaginal pH is more alkaline than the usual 4.5.
Or you can confirm the diagnosis by adding a drop of dilute potassium hydroxide. This will accentuate the fish smell.
And the bacteria cling to epithelial cells, creating the fuzzy-looking "clue cell" in pap smear.
Gardnerella is today's "usual suspect" for producing many cases of premature rupture of the membranes, premature labor, and premature birth (Hosp. Med. 61: 475, 2000). Screening for gardnerella during pregnancy cuts prematurity dramatically: Br. Med. J. 329: 371, 2004.
This produces a red, itchy rash that may have fungal colonies visible.
You can scrape them off and see them under the microscope. Biopsy
is unnecessary. The inflammation is superficial and the infection is annoying but not (by itself) dangerous.
Contrary to "Big Robbins", I am not aware of any reason to
believe that some women are more vulnerable because they are "chronic carriers".
The bug is ubiquitous.
Yeast infections are more likely when there is more glucose in the area
(pregnancy, on the oral contraceptive pill, diabetes), or when the normal
bacteria are suppressed with antibiotics.
Occasionally a candida infection of the fetus and membranes
follows a tear. The most dread complication
is nerosis of the umbilical cord.
TRICHOMONAS:
Vulva, vagina, cervix: Trichomonas vulvovaginitis
This produces a bad-smelling, red ("strawberry") inflammation with
a thin discharge. If you are inexperienced and happen
to biopsy it, you'll see
only superficial inflammation.
The protozoan is easily seen in wet mounts, looking like a bouncing pear
moving about with wiggly flagella. Ask a pathologist to show you a pap smear slide
with "Trich"; there is often a second micro-organism, a very long filamentous
bacterium called "leptothrix".
Trichomonas is much less common nowadays thanks to its incidental
discovery on pap smears. As long as both partners are treated, expect
a good result (Lancet 363: 545, 2004).
Clue cell
Tom Demark's Site
Vulva, vagina, cervix: Yeast infection
NON-NEOPLASTIC DISORDERS
Ectopic breast tissue is fairly common on the vulva.
It can enlarge during pregnancy and lactation.
"Acute vulvitis" is nonspecific inflammation of the vulva, by various
surface bacteria.
Distinguishing vulvar cysts:
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.
* 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).
BENIGN TUMORS
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.
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.
* Leave the diagnosis of such entities as "aggressive angiomyxoma",
"angiomyofibroblastoma", and "angiofibroma" to us.
CARCINOMA OF THE VULVA
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.
* 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.
EXTRAMAMMARY PAGET'S DISEASE is mucin-rich cancer cells
growing within
the epidermis of the vulva or perineum. 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.
* CHILD SEXUAL ABUSE
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.
Vulva
"Pathology Outlines"
Nat Pernick MD
VULVAR VESTIBULITIS (various names)
is a pain syndrome in which the vulva becomes tender and intercourse
is painful.
Long considered "mental", it is now pretty clear that this is a fairly
common organic disease. The pathology features (1) too many mast cells, and (2) too
many nerves (Gyn. Ob. Inv. 58: 171, 2004; Ob.Gyn. 91: 572, 1998).
There may also be red speckles visibly grossly, and/or squamous metaplasia of
the vulvar glands and/or T-cells and plasma cells. Treatments range from
topical anesthetics (which work) to surgery.
* On OB-Gyn, you'll learn about the other important cause of vulvodynia
("essential vulvar dysesthesia"), a burning pain from altered nerve sensitivity.
This is a very difficult management problem.
{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.
{27119} Bartholin gland cyst, vulva
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).
{27110} lichen sclerosis of vulva, histology
* PAPILLARY HIDRADENOMA is an intraductal papilloma of
the breast, only in the vulva along the embryonic milk like.
Microscopically, the pathologist sees a branching fibrous stalk with
a thickened epithelium exhibiting these features of HPV infection:
{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
* "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).
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
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.
{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
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.
{11499} Paget's disease of the vulva, gross
{08903} Paget's disease of the vulva, histology
{08906} Paget's disease of the vulva, histology
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.
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.
NON-NEOPLASTIC LESIONS
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.
CANCER OF THE VAGINA
Melanomas are thankfully uncommon, but do occur sporadically.
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".
EMBRYONAL RHABDOMYOSARCOMA, in its form of "sarcoma botryoides",
is a common cancer of young children.
* 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.
Normal vagina with cervix
WebPath
Vagina
"Pathology Outlines"
Nat Pernick MD
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
Bacteria on vaginal smears
Rogues' gallery
Yutaka Tsutsumi MD
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.
Melanoma of the vagina
Pittsburgh Pathology Cases
Clear cell carcinoma
Vagina -- DES exposure
WebPath Case of the Week
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.
{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
INFLAMMATION
Obviously herpes
NON-TUMORS 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.
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.
{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.
"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.
CIN II: Plenty of atypical cells in the lower portions, normal maturation toward
the surface. (The old "moderate dysplasia" and "severe dysplasia").
CIN III: The cells no longer mature as they reach the surface. (The old
"carcinoma in situ").
INVASIVE CANCER arising in from CIN III is usually squamous.
* There are some less common cancers, also:
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).
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 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 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!
No!
* 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.
Cervix
"Pathology Outlines"
Nat Pernick MD
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.
,
gonorrhea, and chlamydia will produce inflammation.
Especially if you see a lot of
lymphocytes with germinal centers, think of chlamydia.
Chronic cervicitis
WebPath
NABOTHIAN CYSTS are endocervical glands that have become plugged
"by the inflammation", and fill with mucus. Most women have a few of these.
{39991} endocervical polyp, gross
* LAMINAR HYPERPLASIA of the glands is quite common and poorly-understood.
The glands are slender but branch.
* 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)
Cytopathology gallery
International Agency for Research on Cancer
Huge site
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.
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").
* 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.
{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
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.
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.
Pathologists distinguish subtypes of squamous cancer based on their histology
and resemblance to the cells of the normal cervix.
{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.
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).
* "The Toxic Lady!"
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).
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).

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INTRODUCTION
Following deliveries, the uterus may prolapse.
Words to know:
Leave the dating of endometrial samples to pathologists. You will usually get one of these diagnoses:
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.
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.
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).
* 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.
On the Coontagiousness
of Puerperal Fever
Oliver Wendell Holmes MD
* 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.
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.
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ADENOMYOSIS ("endometriosis interna")
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
ENDOMETRIOSIS ("endometriosis externa", BMJ 334:
249, 2007)
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.
* 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.
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. 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.
Infertility often accompanies endometriosis; exactly how this happens
is a minor mystery.
ENDOMETRIAL POLYPS
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).
ENDOMETRIAL HYPERPLASIA
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:
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).
ENDOMETRIAL ADENOCARCINOMA
The risk factors are well-known.
Also remember
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:
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 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).
MIXED MULLERIAN / MESENCHYMAL TUMORS
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.
LEIOMYOMAS (Lancet 357: 293, 2001; Ob. Gyn. 104: 393, 2004)
The etiology is mysterious. They grow in response to estrogen, and shrink (and often vanish)
after menopause.
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.
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.
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.
Adenomyosis
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery
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 (!!).
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).
* Hormones remain mysterious. Watch metformin (?!)
as a drug to arrest endometriosis.
Minor lesions look like powder burns under the serosal surface.
To make the diagnosis, the pathologist must find two of three:Understandably, these lesions can produce dyspareunia (pain on intercourse),
constipation, and dysmenorrhea (pain on menstruation).
* 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.
{25284} endometriosis, histology
{46270} endometriosis, histology
{39843} endometriosis of appendix, gross
{10283} ovarian endometriosis, gross ("chocolate cyst")
Endometriosis of Ovary
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery
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.
{24593} endometrial polyp, gross
{49375} endometrial polyp, gross
{24447} endometrial polyp, histology
Endometrial polyp
WebPath
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).
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
COMPLEX HYPERPLASIA ("complex / adenomatous hyperplasia without atypia")
ATYPICAL HYPERPLASIA ("higher grade hyperplasia")
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.
{27164} "adenomatous hyperplasia" of endometrium
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 primary lesion is likely to be tiny, but to disseminate
over the peritoneal surfaces, probably by reflux out the oviducts.
{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
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery
Endometrioid carcinoma of endometrium
Great labels
Romanian Pathology Atlas
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.
Endometrial Stromal Sarcoma
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery
These are the banal "fibroids" of the myometrium.
At least 25% of women have these during reproductive life.
They are more common in blacks.
* 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).
Submucosal leiomyomas can produce bleeding. Subserosal
leiomyomas are visible on the surface but don't mean anything.
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
Large uterine leiomyoma
Whorls on cross-section
KU Collection
Uterine Leiomyoma
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery
{09016} leiomyosarcoma of uterus, mitotic figure
{39637} leiomyosarcoma, showing mitotic figure
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PELVIC INFLAMMATORY DISEASE ("salpingitis")
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.
OTHER LESIONS OF THE OVIDUCT
CYSTS arise from embryonic structures. Hyatids of Morgagni / paratubal cysts
arise from mullerian duct remnants and are mere curiosities.
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.
The usual infectious agents are the gonococcus and chlamydia.
{39001} intrauterine device (coil type)
{10280} intrauterine device in place
{10904} actinomycosis of the endometrium, histology (note "sulfur granules")
{10901} gonorrheal salpingitis
{27176} acute salpingitis, histology
{27173} chronic salpingitis, histology
Paratubal cyst
WebPath
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.
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{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
* 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.
OVARIAN TORSION usually is caused by an ovarian mass, but can happen at any age.
* Treating it in the unborn (!) -- J. Ped. Surg. 32: 1447, 1997.
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.
Ovary with torsion, gross
WebPath
CYSTIC FOLLICLES ("follicular and luteal cysts")
{00105} cystic follicles in ovary
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.
STEIN-LEVENTHAL SYNDROME ("polycystic ovarian disease / syndrome"; Lancet 370: 685, 2007)
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 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).
* 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.
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.
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INTRODUCING THE OVARIAN TUMORS
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There are three overriding categories of ovarian tumors.
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.
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.
They can occur at any age. They are almost always unilateral.
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.
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).
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.
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:
* 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.
How are the nuclei?
Now count mitotic figures! What will probably
turn out to be just as important is the genotyping, worth learning now..
High-grade serous carcinoma usually has a p53 mutation early,
without the k-ras or b-raf mutations.
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.
Borderline tumors exhibit some stratification of nuclei and/or anaplasia
(much as you'd see in a colon adenoma), but no invasion of the stroma. Again,
surgery is usually curative, and metastatic disease is compatible with long
survival.
Again, real malignancy is obvious. Mucinous carcinomas are bilateral about 20%
of the time.
Mucin in contact with the ovarian stroma can cause it to produce androgens.
These tumors can masculinize.
"Pseudomyxoma peritonei", in which mucin erupts into the peritoneal
cavity and elicits a fibrous response, often results from mucinous
carcinoma of the ovary or appendix.
ENDOMETRIOID TUMOR (Cancer 112: 2211, 2008)
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.
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).
BRENNER TUMOR
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.
GERM CELL TUMORS (Am. J. Clin. Path. 109(S1): S82, 1998)
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.
SPECIALIZED TERATOMA ("monodermal teratoma", from one germ
layer, actually a contradiction in terms)
"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).
DYSGERMINOMA
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.
ENDODERMAL SINUS TUMOR ("yolk sac tumor")
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.
Miscellany
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!
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.
THECOMA-FIBROMAS (Am. J. Ob. Gyn. 199.: 473e, 2008) 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).
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.
MISCELLANY:
"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.
Krukenberg tumor
WebPath
SURFACE EPITHELIAL TUMORS
SEROUS TUMORS
These recapitulate oviduct, with papillary structures and often cilia.
Often there are psammoma bodies.
{09779} papillary cystadenoma of ovary, gross
Ovarian serous cystadenoma
WebPath
The marker WT-1 distinguishes serous and "undifferentiated"
carcinomas (positive) from non-serous
carcinomas (negative -- J. Clin. Path. 61: 152, 2008).
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
+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
+1 for fewer than 7 mitotic figures per ten high power fields
+2 for 7-16
+3 for 16 or more
Low-grade serous carcinomas usually have mutant k-ras or b-raf, present in
"borderline" and "benign" areas or the tumor as well.
{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 serious cystadenocarcinomas
Biilateral. CDC photo
Wikimedia Commons
MUCINOUS TUMORS
These recapitulate endocervix, with mucin production.
{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
Ovarian mucinous cystadenoma
Source unknown
Not for young or sensitive visitors.
Borderline mucinous tumor
Ovary H&E
Wikimedia Commons
For our purposes, all endometrioid tumors of the ovary are malignant.
{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).
Clear cell adenocarcinoma of the ovary
Pittsburgh Pathology Cases
These recapitulate the transitional epithelium of the bladder,
as little chunks in a dense fibrous stroma. You need a good eye
to appreciate this.
{27083} Brenner tumor, histology
{39859} Brenner tumor, gross
{40518} Brenner tumor, histology
Brenner tumor
Tom Demark's Site
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.
{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 Dermoid
Dino Laporte's PathosWeb
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.
{15392} immature ovarian teratoma, histology
{15394} immature ovarian teratoma, histology
{15395} immature ovarian teratoma, histology; the bad section
Struma ovarii
WebPath
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.
{24705} dysgerminoma of ovary, gross
{27038} dysgerminoma of ovary, histology
These are aggressive cancers of children or young adults, which
recapitulate the yolk sac.
{27107} endodermal sinus tumor of ovary (Schiller-Duvall bodies)
SEX CORD TUMORS
* EMBRYONAL CELL CARCINOMA can arise in the ovary as in a man's testis.
GRANULOASA-THECA TUMORS
{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
These are a mix of variable proportions of inactive fibroblasts
and hormonally-active theca cells. These tumors are solid, hard
balls.
{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
SERTOLI-LEYDIG CELL TUMORS ("androblastomas", "arrhenoblastomas")
These recapitulate the Leydig cells and/or seminiferous tubules.
They are unilateral and solid.
{21086} Sertoli-Leydig cell tumor of ovary (good yellow color)
{20235} Sertoli-Leydig cell tumor of ovary, histology
"Hilus cell tumors" are composed only of Leydig cells. They produce androgen.
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{49415} hydrops fetalis
{49416} fetal death, cord around neck
EXAMINING THE PLACENTA (stil good: Am. Fam. Phys. 57(5), March 1998)
Here's what to look for:
Thick placenta: Diabetes? Hydrops fetalis? Infection? All these should be known
to you already.
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.
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.
Peculiar odor: Infection. Listeria may smell sweet, others will be malodorous.
Cord:
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
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
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)
The usual location is the oviduct, though ovary, peritoneum,
and uterine cornua are other known sites. Rarely an intraperitoneal pregnancy
goes to term. 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:
Treatment is surgical. Or if an ectopic pregnancy is known to be present
but has not ruptured, methotrexate can end it.
PROBLEMS IN LATE PREGNANCY
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.
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 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
You remember the mnemonic for the infections of the unborn child:
* 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.
TWINS
Think about it.
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.
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.
When the woman has had a seizure, it's "eclampsia" and the mother and
baby are both at grave risk.
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.
Update on the histopathology: The clincial correlation with the pathology is so-so (Am. J. Ob. Gyn. 194: 1050, 2006).
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).
HYDATIDIFORM MOLE
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.
"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.
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.
* 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.
* 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).
Chorangioma
WebPath Case of the Week
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.
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.
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.
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.
* 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").
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.
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).
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.
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.)
Old cesarean scars are also noteworthy
as sites for ectopic pregnancies (BJOG 113: 1035, 2006).
In the liver: Ob. Gyn. 109: 544, 2007.
The pathologist can help make the diagnosis in a woman
who may be bleeding, by finding decidualized endometrial tissue with
no villi.
{00102} tubal pregnancy, gross
{40140} ectopic pregnancy, gross
{40365} ectopic pregnancy, gross
Ruptured Ectopic Pregnancy
Text and photomicrographs. Nice.
Human Pathology Digital Image Gallery
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.
You will learn about the problems in advanced pregnancy while you
are on "OB".
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.
,
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.
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
T: Toxoplasmosis
![]()
O: Other (syphilis
,
TB
, listeria)
R: Rubella![]()
C: Cytomegalovirus![]()
H: Herpes simplex II
Rubella of the placenta
Advanced students
Yutaka Tsutsumi MD
One chorion, one amnion: No membrane separates the children.
They must be monozygotic (identical) twins.
{15651} twin placenta
{39022} twin placenta, gross
{39989} monochorionic monoamniotic twin
{15709} in utero death of a twin
Stillborn twin
* This seems pretty well established; a United Nations
panel has accepted it as the best direction for further study:
Ob. Gyn. 109: 168, 2007).
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.
ACUTE FATTY LIVER OF 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).
* 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).
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.
This is the most common of the diseases of trophoblast of pregnancy
("gestational
trophoblastic disease").
"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).
{27062} hydatidiform mole, histology
{08921} hydatidiform mole, histology
{08922} hydatidiform mole, histology
{18785} hydatidiform mole
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".
{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
WebPath
Choriocarcinoma
Tom Demark's Site
{47859} pregnant
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":
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'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
I urge anyone interested in learning more about gynecologic pathology to consult these standard textbooks.
In my notes, the most helpful current journal references are embedded in the text. Students using these during lecture strongly prefer this. And because the site is constantly being updated, numbered endnotes would be unmanageable. What's available online, and for whom, is always changing. Most public libraries will be happy to help you get an article that you need. Good luck on your own searches, and again, if there is any way in which I can help you, please contact me at scalpel_blade@yahoo.com. No texting or chat messages, please. Ordinary e-mails are welcome. Health and friendship!
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