Related Experiment Video
Updated: Aug 17, 2026

Focal Cerebral Ischemia Model by Endovascular Suture Occlusion of the Middle Cerebral Artery in the Rat
Published on: February 5, 2011
Persistent hypoglossal artery encountered during carotid endarterectomy
S F McCartney1, M A Ricci, P Labreque
1Department of Surgery, Royal Victoria Hospital, McGill University, Montreal, Quebec, Canada.
Abstract:
The hypoglossal artery is present as an anastomotic channel between the carotid and vertebrobasilar system for approximately one week during embryologic development. Rarely, it may persist into adulthood and may be encountered during cerebrovascular operations. We report a 76-year-old woman with a persistent hypoglossal artery and a symptomatic internal carotid stenosis treated successfully by carotid endarterectomy. A discussion of the embryology, radiology, and operative pitfalls follows.
Related Concept Videos
The Arch of Aorta
Encircling the heart, the coronary arteries form a ring-like structure before...
Arteries of the Head and Neck
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...

