Metaplastic Breast Carcinoma in a Male—A Case Report—

Abstract

Metaplastic breast carcinoma is a rare disease, categorized as a special type, and accounts for <1% of all breast cancer cases. Herein, we report a case of metaplastic breast carcinoma in a male patient. A 73-year-old man presented with a growing mass in his right breast and was diagnosed with adenomyoepithelioma suspicious for malignant transformation, and underwent total mastectomy of the right breast. The pathological diagnosis was triple-negative metaplastic breast carcinoma, pStage IIA. He achieved a relapse-free survival of 3 years 8 months.