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': 'The type of mammary ductal carcinoma is situ (DCIS) most likely to result in palpable abnormality in the breast is: \nSelect and explain. \nA. Apocrine DCIS, B. Neuroendocrine DCIS, C. Well differentiated DICS, D. Comedo DCIS', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) Comedo DCIS(Ref Sabiston 20th Edition Page 837)Types of DCIS:* Comedocarcinoma* Cribriform* Micro Papillary* Solid (High Grade)* Papillary (High grade)Comedo carcinoma presents with palpable mass in breast commonly', 'role': 'assistant'}]