Gynae Malignancy Flashcards
Most common gynae malignancy
Endometrial cancer
THE major risk factor for endometrial cancer
UNOPPOSED OESTROGEN
Risk factors/causes of unopposed oestrogen
High BMI
Anovulation - PCOS or perimenopause.
Granulosa cell tumours - secrete oestrogen.
Oestrogen replacement - Tamoxifen.
Nulliparity
DM
Hereditary non-polyposis colorectal cancer.
Clinical features of endometrial cancer
Postmenopausal bleeding.
Irregular PV bleeding.
Menorrhagia.
Investigating endometrial cancer
TVUS - primary care Ix, measure thickness of endometrium.
Endometrial biopsy for histology examination.
Diagnostic hysteroscopy if unable to obtain biopsy.
Classification of endometrial cancer
Most are adenocarcinomas.
FIGO staging 1-4.
FIGO stage 3 endometrial cancer
Over all = local/regional spread and invasion.
3A = spread to ovary.
3B = Spread to vaginal
3C = Spread to para-aortic lymph nodes
Management of endometrial cancer
Total hysterectomy + bilateral salpingo-oophorectomy + lymphadenectomy
Adjuvant radiotherapy/pallative chemotherapy e.g. carboplatin.
Prognosis of endometrial cancer
Five year survival is close to 80%.
Cervical cancer common age presentations
in 30s and in 80s
Major risk factors for cervical cancer
Highly related to sexual activity and HPV
Risk factors for cervical cancer
Early age of sexual intercourse (less than 16yrs)
Multiple sexual partners.
STI
Multiparity
COCP use
History of cervical intra-epithelial neoplasia
Cigarrettes.
CIN pathophysiology, staging and treatment
This is a pre-malignant stage where cervical cells are changing, most likely due to HPV.
Unable to see with naked eye. Picked up on smears and then colposcopy.
CIN 1 = confined to lower 1/3 of epithelium.
CIN2 = 1/3 to 2/3 thickness of epithelium.
CIN3 = covers more than 2/3 of epithelium.
CIN 1 Rx = re-assess in 1 year as can regress to normal.
CIN2 and 3 Rx = ablation or excision (LEEP).
Clinical symptoms of cervical cancer
POST COITAL BLEEDING
Inter-menstrual bleeding.
Vaginal discharge (offensive) and vaginal pain.
In later stages can get urinary symptoms.
Classification of cervical cancer
Most are squamous cells.
FIGO stages 1-4
FIGO stage 3 cervical cancer
Carcinoma reached pelvis wall or lower third of vagina. Causes hydronephrosis.
Investigations for cervical cancer
Cervical biopsy
Management of cervical cancer
Stage 1ai= cone biopsy
Stages 1b-2b= hysterectomy and consider lymph nodes.
Stage 2b plus = chemo-radiotherapy.
Most oncogenic HPV and oncoprotein they affect
16, 18 and 33 HPV and E6 and E7 oncoprotein.
How is HPV transmitted
Sexually
When is the HPV vaccine offered
Girls, before first sexual intercourse as only effective if no present HPV, around 12yrs of age.
Screening timetable for HPV
25-49yrs - every 3 years 50-64yrs - every 5 years Continue in 65+ if Hx of abnormal tests. HIV +ve - annual. Transgender males still qualify for screening if they retain their cervix.
What does the screening test look for
Historically - dyskaryosis of cervical epithelial (i.e. CIN)
From 2019 - Presence of HPV.
Results of cervical screen smear
No changes/normal = continue screening programme.
Low-grade dyskaryosis/borderline changes = test for HPV. If this is +ve –> Colposcopy. If this is -ve –>continue with screening programme.
High-grade dyskaryosis = Colposcopy.
HPV testing = triage