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': 'All are the Indications of a malignancy in a mammography except \nSelect and explain. \nA. Nodular calcification, B. Speckled margin, C. Attenuated architecture, D. Irregular mass', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Mammographic features suggestive of breast cancer A solid mass with or without stellate features Asymmetric thickening of breast Clustered microcalcification 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', 'role': 'assistant'}]