title: A rare intraosseous arteriovenous malformation of the spine.
abstract: The authors report the case of a patient with an intraosseous spinal arteriovenous malformation (AVM) presenting as an epidural mass lesion that was causing spinal cord compression. The 59-year-old woman had bilateral numbness, weakness, and hyperreflexia of both legs. Magnetic resonance imaging revealed intermediate T1 signal and hyperintense T2 signal involving the right transverse process, bilateral pedicles, and T-5 spinous process; the lesion's epidural extension was causing severe canal compromise and cord displacement. Coil embolization was performed, and the patient underwent resection, after which preoperative symptoms improved. Histopathological analysis revealed a benign vascular proliferation consistent with an intraosseous spinal AVM. On review of the literature, the authors found this case to be the second intraosseous spinal AVM, and the first in a patient whose clinical presentation was consistent with that of a mass lesion of the bone.
authors.affiliation: Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia 22903, USA. rgl2n@virginia.edu
authors.forename: Robert G
authors.initials: RG
authors.lastname: Louis
authors.forename: Chun Po
authors.initials: CP
authors.lastname: Yen
authors.forename: Carrie A
authors.initials: CA
authors.lastname: Mohila
authors.forename: James W
authors.initials: JW
authors.lastname: Mandell
authors.forename: Jason
authors.initials: J
authors.lastname: Sheehan
mesh_terms: D015901:Angiography, Digital Subtraction; D001165:Arteriovenous Malformations / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D003937:Diagnosis, Differential; D004621:Embolization, Therapeutic / Q000379:methods; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D035583:Rare Diseases; D012720:Severity of Illness Index; D013117:Spinal Cord Compression / Q000209:etiology / Q000503:physiopathology; D013904:Thoracic Vertebrae / Q000098:blood supply* / Q000473:pathology; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome