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: Surgery
[{'content': 'Microcalcification on mammography is suggestive of: \nSelect and explain. \nA. Fibroadenoma, B. Hidradenitis suppurative, C. Carcinoma, D. Benign condition', 'role': 'user'}, {'content': "Answer: C \nExplanation: Specific mammographic features that suggest a diagnosis of breast cancer include a solid mass with or without stellate features, asymmetric thickening of breast tissues, and clustered microcalcifications. The presence of fine, stippled calcium in and around a suspicious lesion is suggestive of breast cancer and occurs in as many as 50% of nonpalpable cancers. These microcalcifications are an especially impoant sign of cancer in younger women, in whom it may be the only mammographic abnormality. Ref: Schwaz's principle of surgery 9th edition, chapter 17.", 'role': 'assistant'}]