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An Innovative Journal in the Field of Radiology
e-ISSN 2008-2711
p-ISSN 1735-1065
Occipital Artery Arising from the Anterior Aspect of the Internal Carotid Artery Identified by Three-Dimensional Computed Tomography Angiography
Authors
Toshinori Iwai1,*, Toshiharu Izumi2, Tomio Inoue2, Jiro Maegawa3, Nobukazu Fuwa4, Kenji Mitsudo1, Iwai Tohnai1
1Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, University of Yokohama City, [email protected], Japan
2Department of Radiology, University and Hospital of Yokohama City, Japan
3Department of Plastic and Reconstructive Surgery, University and Hospital of Yokohama City, Japan
4Department of Radiation Oncology, Southern Tohoku Proton Therapy Center, Southern Tohoku Research Institute of Neuroscience, Japan
*Corresponding Author: Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, University of Yokohama City, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, [email protected], Japan. Tel: +81-457872659. Fax: +81-457858438. Email: [email protected]
Published online:Jun 30, 2012
Article type:Case Report
Received:Jul 09, 2011
Accepted:Apr 21, 2012
How to Cite:Iwai T, Izumi T, Inoue T, Maegawa J, Fuwa N, et al. Occipital Artery Arising from the Anterior Aspect of the Internal Carotid Artery Identified by Three-Dimensional Computed Tomography Angiography. I J Radiol. 2012;9(2):. doi: https://doi.org/10.5812/iranjradiol.7809
Abstract
Variation of the branches of the external carotid artery (ECA) is well known, but it is extremely rare for the occipital artery (OA) to arise from the internal carotid artery (ICA). A 87-year-old man was found to have this anatomical variation on the right side by threedimensional computed tomography angiography for vascular mapping of the carotid arteries before superselective intra-arterial catheterization for advanced tongue cancer. Imaging showed the OA arose from the anterior aspect of the right ICA with the origin located 8.8 mm distal from the carotid bifurcation. The inner diameter of the origin of the OA was 2.1 mm and the angle between the OA and the ICA was 62 degrees. It is important to recognize this anatomic variation of the branches of the ECA before head and neck microsurgical reconstruction or superselective intra-arterial chemotherapy for oral cancer.
Copyright
© 2012, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.
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