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: Gynaecology & Obstetrics
[{'content': 'A 28 year old female comes to you with history of oligomenorrhea. On examination you note hirsutism and virilisation. USG showed that the left ovary is enlarged. The testosterone levels comes as 4 ng/ml. What is the MOST probable diagnosis? Note: The LH levels are normal. \nSelect and explain. \nA. PCOS, B. Stromal hypehecosis, C. Luteoma of pregnancy, D. Ovarian tumor', 'role': 'user'}, {'content': 'Answer: D \nExplanation: PCOS is associated with elevated LH and mildly elevated testosterone. In case of stromal hypehecosis, though testosterone is elevated and LH is normal. Markedly elevated testosterone > 2 ng/ml is suggestive of tumor. Ref: Essentials of Gynaecology by Lakshmi Seshadri, Edition 1, page - 254.', 'role': 'assistant'}]