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 20 year old female was diagnosed with granulose cell tumor of the ovary. Which of the following bio markers\nwould be most useful for follow-up of patient? \nSelect and explain. \nA. Inhibin, B. CA50, C. CA 19-9, D. Neuron – specific enolase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Granulosa cell tumor\n• The most common type of ovarian tumor that is composed of cells that stain positively with inhibin.\n• Histologically, the cells may form Call-Exner bodies\n• The tumor cells may secrete estrogens and cause precocious sexual development in girls or increase the risk for endometrial hyperplasia and carcinoma in women.\n• Less commonly granulosa cell tumors can secrete androgens and produce masculinization.', 'role': 'assistant'}]