title: A 55-year-old man with bilateral lower-limb numbness and weakness.
abstract: The following case is presented to illustrate the roentgenographic and clinical findings of a condition of interest to orthopedic surgeons. The initial history, physical findings, and roentgenographic examinations appear on this page. The clinical and roentgenographic diagnoses are presented on the following pages.
authors.affiliation: Department of Diagnostic Radiology, University of Hong Kong, Queen Mary Hospital.
authors.forename: W C
authors.initials: WC
authors.lastname: Peh
authors.forename: P L
authors.initials: PL
authors.lastname: Khong
authors.forename: L A
authors.initials: LA
authors.lastname: Gilula
mesh_terms: D002420:Cauda Equina; D004108:Dilatation, Pathologic; D004388:Dura Mater / Q000473:pathology; D006801:Humans; D007866:Leg / Q000294:innervation; D008297:Male; D008875:Middle Aged; D009123:Muscle Hypotonia / Q000209:etiology*; D009192:Myelography; D009408:Nerve Compression Syndromes / Q000150:complications / Q000000981:diagnostic imaging*; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed