48.Male breast, gynecomastia, low power microscopic
Males have a small amount of breast tissue, but it consists of just a few ducts, without lobules, in a fibrous stroma. It may be unilateral or bilateral. Sometimes it can occur at puberty or sometimes with aging. Gynecomastia may occur with cirrhosis of liver, Leydig cell tumors of testis, or with drugs. There can be ductal epithelial hyperplasia, or prominent periductular edema as seen here.