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Pre-operative Diagnosis of Invasive Ductal Carcinoma within a Fibroadenoma by Mammography

術前乳房攝影診斷纖維腺瘤裡的侵襲性乳癌

並列摘要


Fibroadenomas are the most common benign breast tumors, in which carcinoma rarely develop. We report the imaging findings of an invasive ductal carcinoma arising within the existing fibroadenoma in a 34-year-old young lady. It was diagnosed pre-operatively under suspicious mammographic findings and the malignant diagnosis was confirmed by excision biopsy. The mass showed an explosion of large popcorn-like calcifications with nests of fine pleomorphic calcifications therein, a lobular shape and an obscured margin. The calcifications in the mammogram correlated with histology so well to make the definitely pre-operative diagnosis possible. This case also reminds us that radiologists should always pay attention to the associated malignant imaging characteristics whenever a mass demonstrates typical benign looking calcifications.

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