title: Congenital ureteral valve.
abstract: A one year old boy with ureteral obstruction due to congenital ureteral valve is presented. This rare lesion is usually diagnosed pre-operatively as ureteral stricture or primary megaureter.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D008297:Male; D011859:Radiography; D014513:Ureter / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014515:Ureteral Diseases / Q000175:diagnosis; D014517:Ureteral Obstruction / Q000209:etiology