Bladder exstrophy.

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. The differential diagnosis includes omphalocele, gastroschisis, and cloacal exstrophy. Ultrasound and Doppler examinations are the main diagnostic tools. Although mortality is low, termination of pregnancy should be discussed due to serious morbidities.