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KMID : 1237720210540030399
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Anatomy & Cell Biology
2021 Volume.54 No. 3 p.399 ~ p.403
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Rare anastomosis between the ascending pharyngeal and vertebral arteries via the hypoglossal canal: A cadaveric case report
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Bordes Stephen J.
Zarrintan Sina
Iwanaga Joe
Loukas Marios
Dumont Aaron S.
Tubbs R. Shane
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Abstract
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We present a rare case of external carotid artery-vertebral artery anastomosis via the ascending pharyngeal artery, diagnosed upon cadaveric dissection. The ascending pharyngeal artery gave rise to a branch to the hypoglossal canal, which is a variation of a true persistent fetal hypoglossal artery. Knowledge of persistent carotid-vertebrobasilar anastomoses is important as these fetal vessels can contribute significantly to the posterior cerebral circulation. Only 10 cases of external carotid artery-vertebrobasilar artery anastomoses have been reported to our knowledge, and our case presents the first cadaveric dissection of this rare variation.
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KEYWORD
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Ascending pharyngeal artery, Persistent fetal hypoglossal artery, Hypoglossal artery, Hypoglossal canal, Vertebral artery
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