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Case Reports in Neurological Medicine
Volume 2016 (2016), Article ID 3506161, 3 pages
http://dx.doi.org/10.1155/2016/3506161
Case Report

Relative Hypodense Vertebral Artery Sign on Computerized Tomography in Atherosclerotic Near Occlusion

1Aga Khan University, Medical College, Karachi, Pakistan
2Department of Neurology, Christian Doppler Medical Centre, Paracelsus Medical University Salzburg, Salzburg, Austria

Received 5 August 2016; Revised 6 December 2016; Accepted 15 December 2016

Academic Editor: Samuel T. Gontkovsky

Copyright © 2016 Muhammad Faraz Raghib and Slaven Pikija. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A 52-year-old white male presented with an acute onset of slurred speech along with hypoesthesia in the entire left arm. The acute computed tomography (CT) showed relative hypodensity in the intracranial segment of left vertebral artery (VA) that was not present in historical images, pointing to the possible lack of flow. The site of occlusion was confirmed by magnetic resonance imaging (MRI) that showed susceptibility effect in the affected artery. By means of historical native CT comparison the site of VA thrombosis was correctly predicted. Local atherosclerotic thrombosis of the VA could be relatively hypodense on native CT and still have positive susceptibility weighted imaging (SWI) sign.