This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'True about H. mole:a) Complete mole seen in human onlyb) Trophoblastic proliferationc) Hydropic degenerationd) Villus pattern absent \nSelect and explain. \nA. a, B. bc, C. ac, D. ad', 'role': 'user'}, {'content': 'Answer: B \nExplanation: H mole:\nMicroscopically: It is characterised by :\n\nMarked proliferation of the syncytial and cytotrophoblastic epithelium.\nThinning of the stromal tissue due to hydropic degeneration (edema of villous stroma).\nAvascular villi.\nMaintenance of villus pattern.\n\nAbsence of villus pattern is characteristic of choriocarcinoma and not H mole:', 'role': 'assistant'}]