This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
[{'content': 'Which testicular tumor produces feminizing symptoms? \nSelect and explain. \nA. Seminoma, B. Teratoma, C. Leydig cell tumour, D. Seoli cell tumour', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Interstitial cell tumours arise from Leydig or Seoli cells. A Leydig cell tumour masculinises; a Seoli cell tumour feminises.Seoli cell tumours typically present as a testicular mass or firmness, and their presence may be accompanied by gynaecomastia (25%)Bailey and Love 26e pg: 1386', 'role': 'assistant'}]