Female Reproductive Pathology Flashcards
Regression of the mesonephric (wolfian) ducts means that what sex will develop?
Female.
Regression of the paramesonephric ducts means what sex will develop?
male
What is the definition of a male pseudohermaprhodite?
externally, appears as a female but has testes.
What is the result of vascular anastomosis (exchange of blood between foetuses)?
sterile female co-twin of male freemartin.
What is equine turner’s syndrome?
lack of a sex chromosome (X0). You won’t have female hormones, will have underdeveloped ovaries, and reproductive tract (small vulva and vag is small, with non-functioning ovaries).
What are 2 types of ovarian cysts you can have?
luteal cyst and follicular cyst.
This is an example of what type of cyst?
follicular cyst.
Ovarian hemorrhage is seen when? What animals do you often see these in?
Seen especially after the follicles rupture, and seen more in mares.
This neoplasm is the most common ovarian in cows and mares, it produces estrogens or androgens, and is generally unilateral, large, and nonmalignant.
Granulosa cell tumor (granulosa-theca cell tumor).
This is an example of what tumor? How do you know?
Granulosa cell tumor. The cystic structures and hemorrhagic areas are hallmarks of these tumors.
Histologically, how do you dx granulosa cell tumors?
Call-exner bodies are diagnostic of these tumors. Granulosa cell tumors are also inhibin positive.
This neoplasm contains cells from two or more germ cell lines
teratomas.
This germ cell tumor is a tumor of primordial germ cells of the embryonic gonad, is always considered malignant, and 20% of them metastasize.
dysgerminoma.
What is a histological feature of an adenocarcinoma?
Glandular columnar cells.
What bacteria can cause inflammation of the ovary?
Salmonella pullorum
Which animal has 2 cervices?
Rabbits
This is an example of what? What is this condition usually secondary to?
Hydrosalpinx. It is usually secondary to obstruction.
This condition is usually secondary to endometritis and may lead to pyosalpinx and interfere with fertility
Salpingitis.
What is pyosalpinx?
Accumulation of pus in the tube following obstruction of the lumen.
Uterine torsion usually occurs when?
when there is an enlarged uterus (pregnancy, pyometra, mucometra).
T/F: if there is maceration of the fetus there is always some type of infection.
True.
uterine prolaps occurs in what animals most commonly? What usually causes it?
Ruminants and pigs. Caused by dystocia, forced traction, retained placenta,or post parturient hypocalcemia.
What is the mai cause of uterine rapture?
It is mainly iatogenic (obstetrical manipulation, dystocia, fluid infusions).
What is the difference between hydrometra and mucometra? What usually leads to these conditions?
Hydrometra is the accumulation of fluid, while mucometra is the accumulation of mucous. They are usually secondary to endometrial hyperplasia or congenital obstruction.
What is the most common form of uterine inflammation?
endometritis, inflammation of the endometrium only.
When does the uterus’ resistance to infection reduced?
during prenancy, under the influence of progesterone and postpartum.
What is metritis?
inflammation of all layers of the uterine wall.
What is perimetritis?
inflammation extending to tissues surrounding uterus.
pyometra is what?
accumulation of pus in the lumn of the uterus.
endometrial hyperplasia is usually due to what?
prolonged heperestrogenism or excess progesterone with estrogen priming.
What is the most frequent disorder of the uterus in middle-aged and older intact dogs?
Cystic endometrial hyperplasia and pyometra.
Cystic endometrial hyperplasia and pyometra are an abnormal response of the uterus to what? How do these typically present?
To long periods of high serum-progesterone concentrations during the luteal phases of the estrous cycle. Will present with PU/PD and other renal failure symptoms.
What is this an image of?
Cystic endometrial hyperplasia. Notice all the cysts.
What is the pathogenesis of endometrial hyperplasia in female dogs?
estrogen binds to estrogen receptors in the endometrium–>there is synthesis of intracellular progesterone receptors–> progesterone binds–>accumulations of endometrial secretions–>progesterone immunosuppresses, providing a suitable environment for bacteria to grow and cause pyometra
What is pyometra?
acute or chronic suppurative inflammation characterized by accumulation of pus in the entire lumen, usually secondary to endometritis
Who does pyometra normally affect?
older animals, especially those that are not bred.
What are the clinical signs of pyometra?
PU/PD, depressed, anorexic, and vaginal discharge is also present.
What is the most common cause of pyometra?
E. coli (endotoxin is what makes the animals sick)
What bacteria causes contagious equine metritis?
Taylorella equigenitalis
Who do you test for CEM? is this a reportable disease?
Both stallions and mares, stallions are carriers. It is reportable
What is uterus adenomyosis?
presence of endometrial glands and stroma between the muscle bundles of the myometrium.
This condition is only seen in primates, and it is the result of actively growing endometrial tissues are explanted to aberrant sites within ad outside the uterus.
Endometriosis (ectopic endometrial glands).
What neoplasms are common in the uterus of rabbits?
adenocarcinomas
What neoplasm is the most common neoplasm of the uterus in cows?
lymphosarcoma, in BLV positive cows
What neoplasm is this and who is it commonly found in?
Leiomyoma, found in dogs.
What is this and what purpose do they serve?
These are endometrial cusps and they make gonadotropin which signals to the ovary to keep making progesterone.
The chorion is incontact with (mother/baby)
Mother. Usually fused with the allantois.
The allantois is what layer and what does it contain?
It is the middle layer and it contains fetal urine and other fluids arising from the membrane itself.
What is the amnion? How can you usually ID the fetal side?
Amnion is the smooth translucent membrane that surrounds the fetus and holds amniotic fluid. You can ID the fetal sif due to the presence of amniotic plaques.
What are caruncles?
dome shaped areas in the uterus.
What are cotyledons?
forms on the placenta.
What is a placentome?
where the cotyledons attach to the coruncles. These are the only places where maternal-fetal blood is in contact.