Masculinizing granulosa cell tumour.

A 23-year-old woman had oligomenorrhea, underdevelopment of the breasts, moderate hirsutism and increased serum testosterone values associated with a benign noncystic granulosa cell tumour of the left ovary. She was frail, irritable and apathetic. Since the age of 7 she had had periodic abdominal pain with nausea, vomiting and dizziness; irritability and occipital headache appeared when she was older. Her symptoms resolved and the masculinization did not progress after the tumour was removed. Only six similar well documented cases have been reported.