Arrhenoblastoma during pregnancy.

Arrhenoblastoma is a rare complication of pregnancy. A case of fatal nonvirilizing arrhenoblastoma in a pregnant adolescent, the third such case to appear in the literature, is discussed. Fifteen cases of arrhenoblastoma in pregnancy that have appeared in the recent literature are reviewed; 87% of these tumors were virilizing. When virilization is absent the diagnosis is difficult. Among the more common presenting symptoms are weight loss, nausea and vomiting, abdominal pain, and a palpable abdominal mass. Arrhenoblastoma occurring during pregnancy has a 31% maternal mortality, 44% rate of malignancy, and a 50% perinatal mortality.