This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ecotopic Pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'Latzko triad is characteristic of :-- \nSelect and explain. \nA. Ovarian carcinoma, B. Fallopian tube carcinoma, C. Endometrial carcinoma, D. Cervical carcinoma', 'role': 'user'}, {'content': "Answer: B \nExplanation: Latzko's triad is the combination of pelvic pain, pelvic mass, and a serosanguineous vaginal discharge, in association with Fallopian tube carcinoma.", 'role': 'assistant'}]