Pigmented mammary Paget's disease in a man.

Mammary Paget's disease is one clinical expression of an underlying breast carcinoma. It manifests as persistent erythema, oozing and scaling of the nipple, areola or both. The occurrence of this disease in men is uncommon. This is a report of a pigmented lesion of Paget's disease occurring on the breast of a man. This presentation is unusual and may be confused with melanoma. Its early recognition is important so that adequate therapy may be instituted when the disease has a favorable prognosis.