Bilateral Type 1 Proatlantal Arteries with Absence of Vertebral Arteries

The persistent proatlantal artery is a well-described communication between the carotid and vertebrobasilar system. However, persistence of bilateral proatlantal arteries is exceptionally rare. Although usually noted as an incidental finding, the presence of a proatlantal artery, particularly when b...

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Veröffentlicht in:American journal of neuroradiology : AJNR 2001-02, Vol.22 (2), p.418-420
Hauptverfasser: Woodcock, Richard J, Cloft, Harry J, E. Dion, J
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container_title American journal of neuroradiology : AJNR
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creator Woodcock, Richard J
Cloft, Harry J
E. Dion, J
description The persistent proatlantal artery is a well-described communication between the carotid and vertebrobasilar system. However, persistence of bilateral proatlantal arteries is exceptionally rare. Although usually noted as an incidental finding, the presence of a proatlantal artery, particularly when bilateral, may result in unusual symptoms or may have implications for therapy. We report a case of bilateral proatlantal arteries, describe their embryology, and consider potential clinical implications of this finding.
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subjects Angiography, Digital Subtraction
Atlanto-Occipital Joint - blood supply
Atlanto-Occipital Joint - embryology
Biological and medical sciences
Cerebral Angiography
Cerebral Arteries - abnormalities
Cerebral Arteries - diagnostic imaging
Cerebral Arteries - embryology
Head and Neck
Humans
Male
Medical sciences
Middle Aged
Neurology
Vascular diseases and vascular malformations of the nervous system
Vertebral Artery - abnormalities
title Bilateral Type 1 Proatlantal Arteries with Absence of Vertebral Arteries
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