Hyperreactio luteinalis in pregnancy and hyperandrogenism: a case report.

Hyperreactio luteinalis in pregnancy is associated with theca lutein cysts (TLCs) and androgenization.A 24-year-old, primigravid woman was referred at 35 weeks' gestation for bilateral enlarged cystic ovaries. She showed signs of androgenization. On ultrasonogram the ovaries bore a spoke-wheel appearance. A nonvirilized female infant was subsequently delivered by cesarean section because of obstruction of the birth canal by a large impacted ovarian cyst. There was an initial delay in lactogenesis; however, it was well-established after regression of the TLC, by postpartum week 6. Signs ofandrogenization resolved and testosterone levels returned to normal by 3 months postpartum.Hyperreactio luteinalis is associated with TLC and maternal androgenization in the antepartum period and persists into the postpartum period with subsequent resolution. Aromatization of testosterone in hyperreactio luteinalis prevents fetal virilization, unlike that seen with masculinizing ovarian tumors. There is some evidence of genetic predisposition and a possibility for recurrence in future pregnancies.