Abstract
About 1 of every 100 cases of human breast cancer occurs in a male, resulting in a disease both similar and dissimilar to breast cancer in females. The disorder accounts for about 0.2% of malignant neoplasia in men.(1) Although the basic clinical characteristics of male breast cancer (MBC) had been well characterized even before Wainwright’s classic description in 1927,(2) the relative rarity of the disorder and the consequent reporting of numerous small series have led to frequent disagreement in the literature and insufficient firm data concerning its less prominent features.