Segmental dilatation of the ureter.
D004108:Dilatation, Pathologic / Q000175:diagnosis; D006801:Humans; D007223:Infant; D008297:Male; D011859:Radiography; D014513:Ureter / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014552:Urinary Tract Infections / Q000209:etiology