This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
[{'content': "True regarding male breast Ca \nSelect and explain. \nA. MC lobular type, B. Estrogen receptor positive, C. H\\/O gynaecomastia may be present, D. Paget's disease of nipple is more common in male than female", 'role': 'user'}, {'content': "Answer: B \nExplanation: carcinoma male breast is associated with BRCA2 gene mutation. Risk factors are radiation,oestrogen,cirrhosis,familyhistory ,testicular disease,obesity. Commonly infiltrating duct carcinoma. Lobular carcinoma not common. 80% cases are ER positive. SRB's Manual of Surgery.Edition -5. Pg no:560", 'role': 'assistant'}]