A 47-year-old woman with a 5 cm cervical squamous cell carcinoma has vaginal involvement extending to the junction of the middle and lower thirds of the vagina. Pelvic examination shows no parametrial thickening and both kidneys function normally on ultrasound. What is her correct FIGO 2018 stage?

• A Stage IIA2
• B Stage IIIC1
• C Stage IIB
• D Stage IIIA ✓

Explanation

In FIGO 2018, tumour involving the lower third of the vagina without extension to the pelvic wall is Stage IIIA. Parametrial invasion defines IIB, while upper vaginal involvement without parametrial spread remains Stage IIA, subdivided into IIA1 (4 cm or less) and IIA2 (more than 4 cm). Because the involvement reaches the lower third, option A is incorrect despite the absence of parametrial disease.

Reference: Berek and Novak's Gynecology, 16th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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