Breast cancer in a patient with gynecomastia.

A case of breast carcinoma in the midst of florid gynecomastia in a 20-year-old man is reported. Up to now, only two male patients under the age of 21 with breast malignancy have been described in the literature. In contrast, gynecomastia is a more common condition than generally appreciated. The association of gynecomastia, a rather common condition, and cancer of the male breast, a rather uncommon condition, is examined. Mammography is recommended as part of the workup. A new classification of gynecomastia into true, pseudo, and mixed types is suggested. Recommendations for the role of lipoplasty in the treatment of gynecomastia are made.