A 55-year-old postmenopausal woman has a right ovarian mass with CA-125 of 890 U/mL. Intraoperative frozen section confirms high-grade serous carcinoma. Surgical staging reveals right ovarian involvement with a 2 cm implant on the sigmoid colon serosa and positive cytology of peritoneal washings but no distant spread. What is her FIGO 2014 stage?

• A Stage IIIA1
• B Stage IIIC
• C Stage IVB
• D Stage IIIB ✓

Explanation

Under FIGO 2014 staging, Stage IIIB is defined as peritoneal metastases beyond the pelvis measuring ≤2 cm, with or without retroperitoneal lymph node involvement. The sigmoid colon serosal implant of 2 cm is at the upper limit for IIIB. Stage IIIA1 is retroperitoneal lymph node involvement only. Stage IIIC has implants >2 cm beyond the pelvis. Positive cytology without macro-implants is Stage IIIA2. The serosal implant here (2 cm) meets IIIB criteria.

Reference: Shaw's Textbook of Gynaecology, 17th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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