title: Urethral obstruction in boys caused by prolapse of simple ureterocele.
abstract: Four boys, each with urethral obstruction caused by a prolapsed simple ureterocele (from a non-duplicated collecting system) are reported. This is an unusual complication of an uncommon anomaly.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D011391:Prolapse / Q000150:complications / Q000175:diagnosis; D011859:Radiography; D014518:Ureterocele / Q000150:complications* / Q000175:diagnosis; D014524:Urethral Obstruction / Q000000981:diagnostic imaging* / Q000209:etiology