title: Wilms' tumor in a 'lump' kidney associated with sacral agenesis.
abstract: Many cases of Wilms' tumor developing in a horseshoe kidney have been previously reported. We present a case of Wilms' tumor developing in a "lump" kidney, associated with sacral agenesis. We discuss the implications for staging and make recommendations for follow-up in these cancer-prone children.
mesh_terms: D001842:Bone and Bones / Q000002:abnormalities; D002675:Child, Preschool; D006801:Humans; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D009132:Muscles / Q000002:abnormalities; D011859:Radiography; D014551:Urinary Tract / Q000002:abnormalities; D009396:Wilms Tumor / Q000473:pathology* / Q000601:surgery