Maternal anterior sacral meningocele in pregnancy.

Anterior sacral meningocele is a rare condition resulting from herniation of the meninges through a sacral defect. Women with this condition may undergo inappropriate surgery because the correct diagnosis is missed, resulting in serious complications. In labor, the cyst may rupture, with consequent meningitis and high maternal mortality. We report the case of a 31 year-old pregnant woman with an anterior sacral meningocele. We describe the role of magnetic resonance imaging in the evaluation and management planning in this condition. She was delivered by cesarean section at 34 weeks without complications. Accurate diagnosis and delivery by cesarean prior to labor are important in assuring good outcomes in women with anterior sacral meningoceles.