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Low origin of the persistent hypoglossal artery associated with high carotid bifurcation: a case report
Shu Suzuki1, Akira Uchino2, Yuji Numaguchi3
1Department of Diagnostic Radiology, St. Luke's International Hospital, 9-1 Akashi-cho, Chuo-ku, Tokyo, 104-8560, Japan. shusuzu@luke.ac.jp.
Purpose:
Persistent hypoglossal artery (PHA) is the second most common anastomosis between the carotid and vertebrobasilar systems and it demonstrates some variations.
Methods:
Using magnetic resonance angiography, we diagnosed a case of low origin of the PHA associated with the high carotid bifurcation, and the resulting origin close to the carotid bifurcation.
Results:
The PHA is typically clinically silent as in our case, but it could be a potential cause of glossopharyngeal neuralgia, hypoglossal palsy, and intracranial aneurysms or technical complications in interventional procedure such as carotid stenting.
Conclusions:
We have described a case of low origin of the PHA associated with high carotid bifurcation. To the best of our knowledge, no similar case has been reported in the English-language literature.
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