Module 2: Ovarian Pathology Flashcards
What is a follicular cyst?
Normal functional simple cyst due to LH and FSH stimulating ovary to mature occyte.
How large are follicular cysts?
Grows 3mm-24mm in 10 days
What is a corpus luteum cyst?
A normal functional cyst with debris that occurs after the follicle ruptures during ovulation.
How large are corpus luteum cysts?
1-10 cm
How fast do corpus luteum cysts resolve?
No pregnancy = 8 weeks
Pregnancy = 12-15 weeks
What is a persistent cyst?
A follicular or corpus luteum that grows large before rupturing and causing pain.
What is a paraovarian cyst?
A thin walled, asymptomatic cyst that grows from the remnants of embryonic ducts
Are paraovarian cysts surrounded by ovarian tissue?
No
How large are paraovatian cysts?
1-4cm, not affected by cycle.
What is a urachal cyst?
A cyst that grows from a remnant in development of the bladder.
Where are urachal cysts located?
Midline, anterior abdominal wall between umbilicus and bladder.
What is a omental cyst?
Cyst located higher in the pelvis/abdomen along the omentum.
What are theca lutean cysts?
Mulitple, bilateral cysts that are caused by excessive amounts of hCG.
How large are theca lutean cysts?
Several cm
What are theca lutean cysts associated with?
- Multi pregnancies
- Molar pregnancy
- Choriocarcinoma
- Hyper-stimulation syndrome
What can happen to a theca lutean cyst?
Hemorrhage, rupture, torsion
What is hyper stimulation?
A life threatening condition due to pergonal over stimulation.
What is PCOS and what is it?
Polycyctic ovarian syndrome is when the ovary has many immature follicles that never mature or rupture (no ovulation).
Why does PCOS occure?
Increased androgen secretion from the ovarian stroma (imbalanced) results in no surge of LH.
What is another name for Polycystic Ovarian Syndrome?
Stein-Leventhal syndrome
Who is affected by PCOS?
Women 20-30 years old.
What are the symptoms of PCOS? (5)
- Obesity
- Hirsutism
- Infrequent menses (oligomenorrhea)
- Ogliomenorrhea
- Infertility
What is Hirsutism?
Male pattern hair growth in females.
What is PCOS associated with?
Endometrial cancer
What is the most extreme form of PCOS?
Hyperthecosis, or thecosis
How is PCOS diagnosed?
Blood is tested for increased testosterone
How does PCOS appear on US?
Slightly enlarged ovaries with multiple, small cysts around the periphery (“string of pearls”).
What is incomplete ovarian torsion?
Large, edematous ovaries with multiple cysts (fluid retention due to congestion).
What is complete ovarian torsion?
Increased or decreased echotexture due to infarct or hemorrhage.
How do you evaluate torsion?
With colour and spectral doppler.
What is serous cystadenoma?
- Epithelial
- Simple cystic
- Benign
- Menstruating
- May have septations
What is Serous Cystadenocarcinoma?
- Epithelial
- Complex
- Malignant