Endometrial Cancer
The most common type of this is an adenocarcinoma (80%), which is oestrogen-dependent.
The pre-malignant condition of this is Endometrial Hyperplasia, with most going back to normal over time and < 5% going on to become cancer. This is managed with progestogens e.g. Mirena coil or COCP/POP.
This should be the immediate diagnosis to rule out in any women presenting with Postmenopausal bleeding!
Risk factors:
Exposure to unopposed oestrogen:
Older age
Obesity
Early menarche
Late menopause
Nulliparity
Oestrogen only HRT
PCOS – The lack of ovulation here means there’s less progesterone production from the corpus luteum
Tamoxifen – Has an anti-oestrogenic effect on breast, but an oestrogenic effect on endometrium
Protective factors:
COCP
Mirena coil
Increased pregnancies
Smoking – as it’s anti-oestrogenic
Presentation
Postmenopausal bleeding
Intermenstrual bleeding
Pelvic pain
Menorrhagia
O/E - Enlarged uterus
Investigations
TVUS – Look for endometrial thickening
Pipelle biopsy - This is important to differentiate between hyperplasia and cancer, and is highly sensitive for endometrial cancer, so a -ve result can essentially rule it out.
Management
Total hysterectomy w/bilateral salpingo-oopherectomy (TAH + BSO)
Progesterone can be used to slow progression of the cancer
