title: Hydronephrosis with ureteral valve: diagnosis by ultrasonography and antegrade pyelography.
abstract: A case of massive hydronephrosis secondary to a ureteral valve was discovered upon evaluation of mild trauma. The orderly diagnostic studies, including ultrasonography and antegrade pyelography, led to the correct diagnosis and appropriate therapy. Ultrasonography as a diagnostic tool in urology is discussed and characteristics of the 18 cases of ureteral valves reported to date are reviewed.
mesh_terms: D002648:Child; D004108:Dilatation, Pathologic; D006801:Humans; D006869:Hydronephrosis / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology; D007668:Kidney / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D011859:Radiography; D014463:Ultrasonography; D014513:Ureter / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology; D014515:Ureteral Diseases / Q000000981:diagnostic imaging