Journal of Stroke & Cerebrovascular Diseases
Volume 16, Issue 5 , Pages 236-237, September 2007

Transient Ischemic Attack in a Patient With Absent Carotid Circulation and Dilated Vertebrobasilar Vessels

  • Vivek Misra, MD

      Affiliations

    • Department of Neurology, Louisiana State University Health Sciences Center, Shreveport, Louisiana
    • ,
  • Eduardo Gonzalez-Toledo, MD, PhD

      Affiliations

    • Department of Radiology, Louisiana State University Health Sciences Center, Shreveport, Louisiana.
    • ,
  • Roger E. Kelley, MD

      Affiliations

    • Department of Neurology, Louisiana State University Health Sciences Center, Shreveport, Louisiana
    • Corresponding Author InformationAddress reprint requests to Roger E. Kelley, MD, Department of Neurology, Louisiana State University Health Sciences Center at Shreveport, 1501 Kings Highway, Shreveport, LA 71130.

Received 28 November 2006; received in revised form 21 May 2007; accepted 4 June 2007.

Internal carotid artery (ICA) agenesis is a rare vascular anomaly that, in combination with occlusion of the contralateral ICA, produces significant strain on the posterior circulation for collateral flow. We report a patient who presented with transient ischemic attack and was found to have congenital ICA agenesis and contralateral ICA occlusion with cerebral perfusion maintained through dilated vertebrobasilar circulation.

Key Words: Carotid agenesis, carotid occlusion, vertebrobasilar dilation, transient ischemic attack

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PII: S1052-3057(07)00080-8

doi:10.1016/j.jstrokecerebrovasdis.2007.06.001

Journal of Stroke & Cerebrovascular Diseases
Volume 16, Issue 5 , Pages 236-237, September 2007

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