This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'Villous pattern is lost in \nSelect and explain. \nA. Hydatidiform mole, B. Invasive mole, C. Tubal mole, D. Choriocarcinoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Choriocarcinoma : On histopathology , it is composed of cells of early cytotrophoblast and synctiotrophoblast There are no villi Has ability to metastatic Most common mode of spread is hematogenous Ref: Dutta Obs 9e pg 187.', 'role': 'assistant'}]