New sonographic finding for the prenatal diagnosis of bladder exstrophy: a case report.

Bladder exstrophy is a very rare congenital malformation in which the anterior wall of the bladder is absent, and the posterior wall is exposed externally. Although sonographic findings of bladder exstrophy have been documented, we report a case presenting with a solid mass in the lower fetal abdomen with umbilical arteries running alongside the mass. The relationship between umbilical arteries and bladder exstrophy is a new sonographic finding which may be helpful in the prenatal diagnosis of this condition. Copyright 2003 ISUOG. Published by John Wiley & Sons, Ltd.