Feminizing adrenocortical carcinoma in man.

A 37-year-old male with adrenocortical tumor presenting marked gynecomastia and impotence as initial symptoms was experienced. Abnormal elevations in urinary 17-KS, 17-OHCS and blood estrogen levels were noted. Total surgical removal of the tumor weighing 800g was performed. Postoperatively the gynecomastia disappeared and he regained libido with no signs of recurrence one year later.