title: Preoperative diagnosis of an extradural cyst arising from a spinal facet joint: case report.
abstract: A case of a lumbar spinal extradural cyst is reported. An accurate preoperative diagnosis was made using magnetic resonance imaging. Characteristic findings on magnetic resonance imaging obviate the need for any additional radiological studies. The clinical features, radiological findings, and pathogenesis of these lesions are discussed.
authors.affiliation: Section of Neurological Surgery, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark.
authors.forename: R F
authors.initials: RF
authors.lastname: Heary
authors.forename: S
authors.initials: S
authors.lastname: Stellar
authors.forename: E S
authors.initials: ES
authors.lastname: Fobben
mesh_terms: D001416:Back Pain / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000209:etiology; D013581:Synovial Cyst / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery