Absence of the bladder.

Agenesis of the bladder is a rare anomaly involving the development of the urogenital sinus. We report on 3 patients who survived the initial perinatal period and 2 are alive for more than 4 years. Renal and genital anomalies accompany this abnormality, and recurrent urinary tract infections and incontinence are prominent. Treatment of choice is urinary diversion in the hope of stabilizing renal function and an antirefluxing procedure is deemed preferable.