title: Retrodural cysts bridging a bilateral lumbar spondylolysis: a report of two symptomatic cases.
abstract: We report the MR features in two patients presenting with symptomatic thecal impingement by posterior epidural cysts linking a bilateral lumbar spondylolysis. Large fluid-filled channels bridging the ruptured partes interarticulares were present in spite of the absence of significant arthritic changes within the adjacent facet joints.
authors.affiliation: Department of Medical Imaging, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium.
authors.forename: T
authors.initials: T
authors.lastname: Duprez
authors.forename: P
authors.initials: P
authors.lastname: Mailleux
authors.forename: A
authors.initials: A
authors.lastname: Bodart
authors.forename: B
authors.initials: B
authors.lastname: Coulier
authors.forename: J
authors.initials: J
authors.lastname: Malghem
authors.forename: B
authors.initials: B
authors.lastname: Maldague
mesh_terms: D000328:Adult; D003560:Cysts / Q000473:pathology*; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D013169:Spondylolysis / Q000473:pathology*