title: Idiopathic presacral retroperitoneal fibrosis: report of two cases.
abstract: Retroperitoneal fibrosis is characteristic plaques of dense fibrous tissue, typically extending from the level of the kidney down to the sacral promontory. Involvement of the presacral space is extremely rare in retroperitoneal fibrosis. We report two cases of idiopathic retroperitoneal fibrosis manifested by a presacral mass.
authors.affiliation: The Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, SNUMRC, Clinical Research Institute, Seoul National University Hospital, Seoul, Korea.
authors.forename: B K
authors.initials: BK
authors.lastname: Park
authors.forename: S H
authors.initials: SH
authors.lastname: Kim
authors.forename: M H
authors.initials: MH
authors.lastname: Moon
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000209:etiology; D012185:Retroperitoneal Fibrosis / Q000175:diagnosis*; D012445:Sacrococcygeal Region; D014057:Tomography, X-Ray Computed