This document summarizes 6 sources that discuss various male breast conditions including: core needle biopsy for assessing unilateral male breast lesions; a case report of multiple symmetric lipomatosis and gynecomastia; a single-center experience of plasma cell mastitis in men and review of literature; a case report of myofibroblastoma of the male breast with radiologic-pathologic correlation; a case report of intraductal papilloma of the male breast; and an editorial on small steps in the study of male breast cancer.