This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'Lutein and theca lutein cysts may be associated with all the following except \nSelect and explain. \nA. Mole, B. Choriocarcinoma, C. Stein-leventhal syndrome(PCOS), D. Pregnancy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: - Theca lutein cysts are present because of high HCG. - These are seen in : Molar pregnancy, Choriocarcinoma, Twin pregnancies, Chronic renal failure (due to decreased hCG clearance) Hypehyroidism (due to structural homoly between hCG and TSH) - PCOS is not associated with theca lutein cysts. In fact, PCOS has NO CYSTS. - PCOS is associated with anovulation and hyperandrogenesim.', 'role': 'assistant'}]