Prenatal diagnosis of cloacal exstrophy: a case report and review of the literature.

Cloacal exstrophy (CE) is a rare congenital disorder with a number of significant associated anomalies. Fetal ultrasound has been used to identify CE; however, accurate diagnosis is challenging. Recently, magnetic resonance imaging has been reported to improve prenatal diagnosis and better characterize the associated defects. We report a case of CE accurately diagnosed using magnetic resonance imaging after fetal ultrasound was nondiagnostic and review the literature comparing the use of each modality.