Retroperitoneal fibrosis in children.
D002675:Child, Preschool; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging / Q000209:etiology; D008297:Male; D011859:Radiography; D012185:Retroperitoneal Fibrosis / Q000150:complications / Q000000981:diagnostic imaging*; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000209:etiology