This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
[{'content': 'A unilateral ovarian tumour with visible peritoneal implants belong to \nSelect and explain. \nA. Stage IB, B. Stage IC, C. Stage IIA, D. Stage IIIB', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ovarian cancer staging:Stage III Tumor involves 1 or both ovaries or fallopian tubes or primary peritoneal cancer with cytologically or histologically confirmed spread to the peritoneum outside the pelvis and/or metastasis to the retroperitoneal lymph nodes. III b: macroscopic extrapelvic peritoneal metastasis < or = 2cm with or without positive retroperitoneal lymph nodes. Includes extension to capsule of liver/ spleen. III c: macroscopic extrapelvic peritoneal metastasis > 2cm with or without positive retroperitoneal lymph nodes. Includes extension to capsule of liver/ spleen. Reference : textbook of gynaecology Sheila balakrishnan, 2nd edition, pg no: 277', 'role': 'assistant'}]