Gynaecological cancers Flashcards
three layers of the uterus
endometrium
myometrium
perimetrium
uterus supplied by what
uterine artery (branch off internal iliac)
proliferative phase fuelled by what hormone
oestrogen
luteal phase fuelled by what hormone
progesterone
most endometrial cancers are what type
Other type
adenocarcinoma/endometroid
- excess oestrogen, slow growing
Non-endometroid
- serous, clear cell, carcinosarcoma (faster growing and more likely to spread. not oestrogen driven)
risk factors for endometrial cancer
excess oestrogen: nulliparous women late menopause obesity (fat produces oestrogen) PCOS Lynch syndrome
what is protective for endometrial cancer
smoking
COCP
coil
presentation of endometrial cancer
post menopausal bleeding
intermenstrual bleed, heavy
Investigating endometrial cancer
USS looking at endometrial thickness
if over 5mm
pipelle biopsy
endometrial cancer: stage 1A stage 1B stage 2 stage 3A stage 3B stage 3c stage 4a stage 4b
stage 1A : endometrium stage 1B: myometrium stage 2: cervix stage 3A: ovary stage 3B: vagina stage 3c: lymph nodes stage 4a: bladder or bowel stage 4b: liver
where does the ovarian vascular supply enter
suspensory ligament (which holds ovary to pelvic wall)
L ovarian vein drains into what
R ovarian vein drains into what
L -> renal artery
R-> IVC
two layers of ovary
outer cortex (connective tissue stroma with ovarian follicles) inner medulla (contains neurovascular structures)
from which cells do ovarian cancer arise
epithelial (90%)
some germ cell
some stromal cell
risk factors for ovarian cancer
age family history BRCA gene obesity smoking HRT having endometriosis (COCP is protective)