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Case Report
 
Aberrant high-riding innominate artery and right internal carotid artery in the retropharyngeal space
Mudali Denis Mathavhane1, Orapeleng Seboco2, Bafana Elliot Hlatshwayo3
1Registrar, Diagnostic Radiology and Imaging, Polokwane Mankweng Hospital Complex and university of Limpopo, Polokwane, Limpopo Province, South Africa.
2Medical Officer, Diagnostic Radiology and Imaging, Polokwane Mankweng Hospital Complex, Polokwane, Limpopo Province, South Africa.
3Senior Specialist, Diagnostic Radiology and Imaging, Polokwane Mankweng Hospital Complex, Polokwane, Limpopo Province, South Africa.

doi:10.5348/ijcri-201577-CR-10538

Address correspondence to:
Mudali Denis Mathavhane
P.O Box 11216, Bendor
Limpopo Province 0713
South Africa
Phone: +27763311088

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How to cite this article
Mathavhane MD, Seboco O, Hlatshwayo BE. Aberrant high-riding innominate artery and right internal carotid artery in the retropharyngeal space. Int J Case Rep Images 2015;6(8):469–473.


Abstract
Introduction: Anatomic variations of the branching pattern of the aortic arch are well documented, however, a high-riding innominate artery (IA) or brachiocephalic artery ascending as far as the thyroid gland is an uncommon occurrence. Similarly, retropharyngeal transposition of the right cervical internal carotid artery (ICA) is a rare anatomic variant. We describe a case of a patient with an aberrant high-riding IA and an aberrant retropharyngeal right cervical ICA.
Case Report: A 63-year-old female who presented with a pulsatile anterior neck mass was referred for imaging. A neck contrast-enhanced computed tomography (CECT) scan revealed an aberrant high-riding IA crossing anterior to the trachea just inferior to the thyroid gland. A retropharyngeal right cervical ICA was also found at the second vertebral body level.
Conclusion: Although both of these variants are rare, they are of significance because they can cause fatal hemorrhage during neck surgical and anesthetic procedures if not recognised during imaging.

Keywords: Aberrant, Innominate Artery (IA), Right cervical internal carotid artery (ICA)


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Author Contributions
Mudali Denis Mathavhane – Substantial contributions to conception and design, Acquisition of data, Analysis and interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Orapeleng Seboco – Substantial contributions to conception and design, Analysis and interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Bafana Elliot Hlatshwayo – Substantial contributions to conception and design, Analysis and interpretation of data, Drafting the article, Revising it critically for important intellectual content, Final approval of the version to be published
Guarantor of submission
The corresponding author is the guarantor of submission.
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Conflict of interest
Authors declare no conflict of interest.
Copyright
© 2015 Mudali Denis Mathavhane et al. This article is distributed under the terms of Creative Commons Attribution License which permits unrestricted use, distribution and reproduction in any medium provided the original author(s) and original publisher are properly credited. Please see the copyright policy on the journal website for more information.