This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
[{'content': 'A 30-years-old lady comes with blood stained discharge from the nipple with family history of breast cancer. Next best step for her will be: \nSelect and explain. \nA. Ductoscopy, B. Sono-mammogram, C. Nipple discharge cytology, D. MRI', 'role': 'user'}, {'content': 'Answer: D \nExplanation: First investigation to be done in suspected case - Mammography In high risk patients (eg. Family history positive, BRCA1 positive) - MRI Remember: The most common cause of blood-stained discharge from single duct is duct papilloma. The most common cause of blood-stained discharge from multiple ducts is duct carcinoma. The most common cause of serous discharge from the breast is fibrocystic disease of breast.', 'role': 'assistant'}]