title: US case of the day. Retroperitoneal fibrosis with perirenal involvement.
authors.affiliation: Department of Radiology, Albert Einstein Medical Center, Philadelphia, PA 19141-3098, USA.
authors.forename: R L
authors.initials: RL
authors.lastname: Barrett
authors.forename: M M
authors.initials: MM
authors.lastname: Horrow
authors.forename: J A
authors.initials: JA
authors.lastname: Gubernick
authors.forename: H K
authors.initials: HK
authors.lastname: Rosenberg
mesh_terms: D000368:Aged; D006801:Humans; D007676:Kidney Failure, Chronic / Q000209:etiology; D008297:Male; D012185:Retroperitoneal Fibrosis / Q000150:complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014517:Ureteral Obstruction / Q000209:etiology