title: Unsuspected duplex ureters.
abstract: Three cases of unsuspected duplex ureters are presented. It is suggested that nonvisualizing upper pole segments should be suspected whenever a duplication occurs on the contralateral side regardless of the radiographic appearance.
mesh_terms: D000328:Adult; D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007082:Ileum / Q000000981:diagnostic imaging; D007668:Kidney / Q000000981:diagnostic imaging; D008297:Male; D011859:Radiography; D014513:Ureter / Q000002:abnormalities* / Q000000981:diagnostic imaging