title: Acute perirenal extravasation of urine in an infant with non-refluxing megaureter.
abstract: Perirenal extravasation of urine is a rare event in congenital uropathies, mostly observed perinatally in the case of infravesical obstruction. We describe a male infant with a primary non-refluxing obstructive left megaureter who developed an acute perirenal extravasation and ascites at the age of 4 weeks. After temporary upper urinary diversion, ureterocystoneostomy was successfully performed. Intraoperatively, the distal ureter showed an extremely narrow lumen over a distance of 3 cm. In the current literature, postnatal management of primary megaureters is preferably conservative. Our patient demonstrates an extremely rare complication demanding early surgical intervention.
authors.affiliation: Pediatric Clinic, University Clinics of Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany. beetz@kinder.klinik.uni-mainz.de
authors.forename: Rolf
authors.initials: R
authors.lastname: Beetz
authors.forename: Raimund
authors.initials: R
authors.lastname: Stein
authors.forename: Petra
authors.initials: P
authors.lastname: Rohatsch
authors.forename: Rita
authors.initials: R
authors.lastname: Brzezinska
authors.forename: Jochen W
authors.initials: JW
authors.lastname: Thüroff
mesh_terms: D000208:Acute Disease; D001201:Ascites / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D014463:Ultrasonography; D014513:Ureter / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014517:Ureteral Obstruction / Q000150:complications* / Q000000981:diagnostic imaging* / Q000601:surgery; D014556:Urine