Paget's Disease of the Male Breast

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Abstract
We report a 61‐year‐old male with mammary Paget's disease. Physical examination revealed a slightly exudative erythema at the areola and a reddish, enlarged left nipple. No tumor or left axillary lymph nodes was palpable. He underwent a left modified radical mastectomy. Histologically, there was an intraductal carcinoma in the upper portion of the mammary ducts. The axillary lymph nodes that were examined were free of metastasis. Paget cells had neither estrogen nor progesterone receptors. We speculated that the histogenesis of Paget cells involved carcinoma cells that invaded the epidermis of the nipple.