A 62-year-old obese woman with grade 2 endometrioid endometrial carcinoma invades 60% of the myometrium. There is no cervical stromal invasion and no lymph node involvement. Peritoneal washings are negative. According to FIGO 2009 staging, she is:
- A Stage IB ✓
- B Stage IC
- C Stage IIA
- D Stage IIIA
Correct answer: A. Stage IB
Explanation
FIGO 2009 endometrial cancer staging: Stage IA — tumour confined to uterus, invades less than half the myometrium; Stage IB — tumour confined to uterus, invades half or more of the myometrium. Myometrial invasion of 60% (>50%) with no cervical or extrauterine spread classifies as Stage IB. Stage IIA requires cervical stromal invasion; Stage IIIA requires adnexal or serosal involvement. FIGO 2009 removed Stage IC (which existed in FIGO 1988).
Reference: Shaw's Textbook of Gynaecology, 17th ed.
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