A 58-year-old postmenopausal obese woman with Type 2 diabetes undergoes endometrial biopsy for postmenopausal bleeding. Histology shows grade 1 endometrioid adenocarcinoma. MRI pelvis shows tumor confined to the endometrium with no myometrial invasion. What is her FIGO stage?
- A Stage IB
- B Stage II
- C Stage IA ✓
- D Stage IIIA
Correct answer: C. Stage IA
Explanation
According to FIGO 2023 staging of endometrial carcinoma, Stage IA includes tumors limited to the endometrium or with <50% myometrial invasion in low-grade (Grade 1 or 2) endometrioid carcinomas. Tumor confined to endometrium with no myometrial invasion is Stage IA. Stage IB is invasion ≥50% of myometrium. Stage II involves cervical stromal invasion. Staging in endometrial carcinoma requires surgical evaluation (hysterectomy + bilateral salpingo-oophorectomy + lymph node assessment).
Reference: Shaw's Textbook of Gynaecology, 17th ed.
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