Gynecologic Pathology II Flashcards
Non-physiologic, non-invasive proliferation of endometrium
endometrial hyperplasia
endometrial hyperplasia is caused by _____
increased, unopposed estrogen effect
endometrial hyperplasia clinical presentation
abnormal bleeding
protective factors for endometrial hyperplasia
progesterone, large # births, old age at first birth, long birth period, short premenopausal delivery free period
Exogenous risk factor for endometrial hyperplasia
tamoxifen
histologic features of endometrial hyperplasia
abundant material with curettage, diffuse abnormality –> increased gland to stroma ratio, irregularities in gland shape, variation in gland size, mitotic activity
hyperplasia without atypia vs hyperplasia with atypia
gland architecture (simple vs complex)
Prominent nuclei in endometrial hyperplasia histology suggest
atypia
Risk of cancer after diagnosis of endometrial hyperplasia is highest among those with ____
complex with atypia = 29%–> risk doesn’t change if hysterectomy is done immediately after
Distinguishing endometrial hyperplasia from carcinoma
myometrial invasion or invasion of endometrial stroma suggest carcinoma (ie desmoplastic response, cribiform glands, extensive papillary pattern)
irregular infiltration of glands associated with altered fibroblastic stroma
desmoplastic response
confluent glandular pattern uninterrupted by stroma
cribiform glands
fibrovascular cores lined by epithelial cells
papillae indicative of papillary growth pattern
Most common malignant tumor of female genital tract
endometrial carcinoma
Type I endometrial carcinoma
estrogen dependent endometrioid type –> 80-85%
Type II endometrial carcinoma
non-estrogen dependent –>15-20%
2 types of Type II endometrial carcinoma
serous type, clear cell type
Type I or Type II endometrial carcinoma? unopposed estrogen
Type I
Type I or Type II endometrial carcinoma? pre and perimenopausal
Type I