[Prune belly syndrome].

Referring to a patient operated on the third day of life for pyeloureteral stenosis the 'prune belly' syndrome is described. The syndrome is delineated by urinary tract anomalies, undescended testicles and a prune like abdominal wall. Several other anomalies are commonly seen. In this patient the megaureters, the vesicoureteral reflux and megacystis are considered part of the syndrome. The pyeloureteral stenosis was only seen once before in a succumbed newborn.