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Updated: May 5, 2026

Focal Cerebral Ischemia Model by Endovascular Suture Occlusion of the Middle Cerebral Artery in the Rat
Published on: February 5, 2011
Bilateral abnormal origin of the anterior branches of the external carotid artery
Theodore Troupis1, Adamantios Michalinos1, Ioannis Dimovelis1
1Department of Anatomy, Faculty of Medicine, National and Kapodistrean University of Athens, Athens, Greece.
Background:
Description of a rare variation is provided alongside with a review of the literature with special references to anatomic, embryologic, and clinical issues it may create.
Methods:
This was a cadaveric dissection conducted during a pregraduate anatomy course that is accompanied by short review of the literature and critical appraisal.
Results:
During dissection of the neck region of a male cadaver, the superior thyroid artery occurred from the common carotid artery bilaterally and the lingual artery occurred from the carotid bifurcation on the left side.
Conclusions:
Superior thyroid artery originating from common carotid artery or carotid bifurcation is a common variation, but the lingual artery originating from the common carotid artery or carotid bifurcation is very rare (<1%). Its existence can have a significant impact on treatment success and potentially lead to errors during interventions at the neck region. A high level of suspicion is required.
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