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': 'Most common recurrence sites or metastatic sites of malignancy following pelvic surgery are all except : \nSelect and explain. \nA. Carcinoma cervix -- Lateral pelvic wall and central pelvis, B. Carcinoma ovary -- Lung, C. Chorionepithelioma - Suburethral anterior vaginal wall, D. Carcinoma body --Vault of vagina', 'role': 'user'}, {'content': "Answer: B \nExplanation: Recurrence sites of malignancy Ca Cervix : 30% recurrence after 5 years and sites are pelvic side walls and central pelvis Choriocarcinoma : lower third of the vagina and vulva Carcinoma body : by implantation in vulva,vaginal vault pg no:365] SHAW'S TEXTBOOK OF GYNECOLOGY,15th edition D.C.DUTTA'S TEXTBOOK OF GYNECOLOGY,6TH EDITION", 'role': 'assistant'}]