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cervical aortic knuckle

 

Definition: an anomalous aortic arch in which the aorta extends into the neck and forms an anteroposterior arch, which may be as high as the hyoid bone; the common carotid artery of one side is given off from the summit of the arch, and the common carotid of the other side arises from the more proximal part of the aorta; the pulsating arch may be mistaken for an aneurysm, but the radial pulses are equal.

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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