Mammary malignancy in the male.

Mammary carcinoma in the male, a relatively uncommon disease, represents about 0.9 to 1.5 percent of all breast cancers. (1,2) The authors reviewed 16 cases of male breast cancer seen in a 30-year period at the State University of New York, Kings County Hospital Medical Center in Brooklyn, and the North Shore University Hospital in Manhasset. Epidemiology, etiology, demography, signs and symptoms, management, and prognosis are discussed. A review of pertinent literature is presented.