[Gynecomastia as a complication of hormonotherapy for prostate cancer: effect of prophylactic breast irradiation].

Gynecomastia is a benign condition characterized by proliferation of mammary glandular tissue. Hormonotherapy with bicalutamide for prostate cancer is one of the causes of gynecomastia. The well known aim of treatment is to decrease psychological distress and to improve cosmetic appearance. Prophylactic breast irradiation may prevent the appearance of gynecomastia.