title: Ectasia of the vertebral artery as a cause of isolated pyramidal tract signs: case report and a review of the literature.
abstract: A rare presentation of vertebral artery ectasia is reported with magnetic resonance imaging and angiographic correlation. The unusually low level of the abnormality had previously resulted in an incorrect diagnosis of primary pyramidal degeneration. One similar case has been reported in the world literature.
authors.affiliation: Department of Radiology, Midland Centre for Neurosurgery and Neurology, Smethick, West Midlands, UK.
authors.forename: M S
authors.initials: MS
authors.lastname: Moss
authors.forename: R J
authors.initials: RJ
authors.lastname: West
mesh_terms: D002533:Cerebral Angiography; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000175:diagnosis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000175:diagnosis / Q000209:etiology*; D009460:Neurologic Examination; D011712:Pyramidal Tracts / Q000473:pathology; D014711:Vertebral Artery / Q000473:pathology