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': 'Pain of ovarian carcinoma is referred to - \nSelect and explain. \nA. Back of thigh, B. Gluteal region, C. Anterior surface of thigh, D. Medial surface of thigh', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Medial side of thigh Ovarian pain is referred along the medial side of the thigh. - The obturator nerve is the adductor compament of the thigh and during its course when it runs in front of internal iliac vessels it is separated from the normally situated ovary only by the parietal peritoneum lining the pelvic wall. Pain from the ovary may be referred along the nerve to the skin on the medial side of the thigh.', 'role': 'assistant'}]