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: Anatomy
[{'content': 'The type of mammary ductal carcinoma in situ (DCIS)most likely to result in a palpable abnormality in the breast is: \nSelect and explain. \nA. Neuroendocrine DCIS, B. Well differentiated DCIS, C. Comedo DCIS, D. Apocrine DCIS', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ductal carcinoma in situ (DCIS) can be divided into two types: Comedo carcinomas and Non-comedocarcinomas DCIS are usually detected as calcifications on mammography but comedo carcinomas can present as palpable nodules. Ref : Robbins (big)8/e p1080', 'role': 'assistant'}]