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: Pathology
[{'content': 'A microscopic feature of seminoma include all of the following except - \nSelect and explain. \nA. Gland formation, B. Lymphocytic infiltration, C. Monomorphic cells, D. Destruction of seminiferous tubules', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Microscopic features of Seminoma\n\nSheets of uniform (monomorphic) cells, i.e., seminoma cells,\nSheets are divided into poorly demarcated lobules by delicate septa of fibrous tissue.\nSepta is infiltrated with T- lymphocytes.\nSometimes prominent granuloma\n\nSeminoma cell has the following features\n\nLarge and round to polyhedral. \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\nDistinct cell membrane \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\nClear or watery appearing cytoplasm. \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\nA large central nucleus with one or two prominent nuclei.\nCytoplasm contains glycogen.\n\xa0Placental alkaline phosphatase and keratin positive.', 'role': 'assistant'}]