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American Journal of Neuroradiology, Vol 19, Issue 8 1414-1416, Copyright © 1998 by American Society of Neuroradiology

ARTICLES

Abnormal origin of the vertebral artery from the common carotid artery

CJ Chen, LJ Wang and YC Wong
Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Taipei, Taiwan.

An abnormal origin of the vertebral artery from the common carotid artery (VA-CC) may occur on the right or left side with different embryonic mechanisms. We describe a patient with a double developmental anomaly, a right VA-CC and a right aortic arch. The rotation of the aortic arch caused a "twist" of the embryonic mechanisms of VA-CC and misdirected the differential diagnosis of the embryonic mechanisms at first glance. We discuss the pivotal points in differentiating the embryonic mechanisms of VA-CC.




Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X