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': 'Reinke crystals are found in \nSelect and explain. \nA. Arrhenoblastoma, B. Granulosa cell tumor, C. Dysgerminoma, D. Hilus cell tumor', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Hilus cell tumor: Rare virilizing tumor Arises from cells in the ovarian hilum Presence of Reinke crystals in the cells is the distinguishing feature of leydig or interstitial cells of testis Ref: Shaw Gynecology 17e pg 449.', 'role': 'assistant'}]