title: Ectopic supernumerary kidney. Functional assessment using radionuclide imaging.
abstract: A three-year old male presented with severe hydronephrosis secondary to posterior urethral valves; a pelvic supernumerary kidney was discovered postoperatively. Radionuclide imaging assisted in the management of this patient by providing estimates of relative renal function. A report of the case and a complete summary of the literature concerning this unusual duplication anomaly follows.
mesh_terms: D002675:Child, Preschool; D006801:Humans; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D011859:Radiography; D011877:Radionuclide Imaging; D014718:Vesico-Ureteral Reflux / Q000000981:diagnostic imaging* / Q000209:etiology