According to FIGO 2018 cervical cancer staging, a 4.5 cm tumour with parametrial invasion on pelvic MRI but no sidewall extension and no lymph node involvement is classified as:

• A Stage IIIBr
• B Stage IIIC1r
• C Stage IVA
• D Stage IIB ✓

Explanation

FIGO 2018 staging: Stage IIB = parametrial involvement without pelvic sidewall extension. Stage IIIB = tumour extending to pelvic sidewall or causing hydronephrosis. Stage IIIC1 = pelvic lymph node metastasis (suffix 'r' if by imaging, 'p' if by pathology). Since only parametrial invasion is present with no nodal disease or sidewall involvement, this is Stage IIB.

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

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.