title: Lumbar extradural arachnoid cyst presenting as a conus lesion in a man aged 77 years.
authors.forename: J B
authors.initials: JB
authors.lastname: Winer
authors.forename: A E
authors.initials: AE
authors.lastname: Harding
authors.forename: L
authors.initials: L
authors.lastname: Symon
authors.forename: D P
authors.initials: DP
authors.lastname: Kingsley
mesh_terms: D000368:Aged; D001099:Arachnoid / Q000473:pathology*; D003560:Cysts / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009408:Nerve Compression Syndromes / Q000473:pathology*; D013126:Spinal Nerve Roots / Q000473:pathology*