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Absent Internal Carotid Artery With Intact Circle of Willis
The internal carotid arteries are one of the primary suppliers of the Circle of Willis and cerebral blood flow, but the rare case of agenesis of the internal carotid artery can impair the functional redundancies of cerebral blood supply. In this study, routine, medical education-focused cadaveric di...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Cureus
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8431985/ https://www.ncbi.nlm.nih.gov/pubmed/34527477 http://dx.doi.org/10.7759/cureus.17090 |
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author | Sonne, James W Kaiser, Helen Williams, Shanna |
author_facet | Sonne, James W Kaiser, Helen Williams, Shanna |
author_sort | Sonne, James W |
collection | PubMed |
description | The internal carotid arteries are one of the primary suppliers of the Circle of Willis and cerebral blood flow, but the rare case of agenesis of the internal carotid artery can impair the functional redundancies of cerebral blood supply. In this study, routine, medical education-focused cadaveric dissection of an 80-year-old male cadaver (cause of death was ventricular tachycardia) was performed. A case of agenesis of the left internal carotid artery and the carotid canal was identified. Upon investigation, we found that the compensatory pattern of irrigation in the Circle of Willis did not conform to previously described cases in the scientific literature. Further literature review suggested that such agenesis can be associated with a wide range of conditions from stroke, migraine, tinnitus, and Horner’s syndrome. Due to the altered blood flow pattern, we caution the reading physician regarding the potential for ischemia and iatrogenic damage, particularly of the pituitary gland and eye. We suggest the use of neuroangiographic imaging in cases of agenesis of an internal carotid artery. |
format | Online Article Text |
id | pubmed-8431985 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Cureus |
record_format | MEDLINE/PubMed |
spelling | pubmed-84319852021-09-14 Absent Internal Carotid Artery With Intact Circle of Willis Sonne, James W Kaiser, Helen Williams, Shanna Cureus Medical Education The internal carotid arteries are one of the primary suppliers of the Circle of Willis and cerebral blood flow, but the rare case of agenesis of the internal carotid artery can impair the functional redundancies of cerebral blood supply. In this study, routine, medical education-focused cadaveric dissection of an 80-year-old male cadaver (cause of death was ventricular tachycardia) was performed. A case of agenesis of the left internal carotid artery and the carotid canal was identified. Upon investigation, we found that the compensatory pattern of irrigation in the Circle of Willis did not conform to previously described cases in the scientific literature. Further literature review suggested that such agenesis can be associated with a wide range of conditions from stroke, migraine, tinnitus, and Horner’s syndrome. Due to the altered blood flow pattern, we caution the reading physician regarding the potential for ischemia and iatrogenic damage, particularly of the pituitary gland and eye. We suggest the use of neuroangiographic imaging in cases of agenesis of an internal carotid artery. Cureus 2021-08-11 /pmc/articles/PMC8431985/ /pubmed/34527477 http://dx.doi.org/10.7759/cureus.17090 Text en Copyright © 2021, Sonne et al. https://creativecommons.org/licenses/by/3.0/This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Medical Education Sonne, James W Kaiser, Helen Williams, Shanna Absent Internal Carotid Artery With Intact Circle of Willis |
title | Absent Internal Carotid Artery With Intact Circle of Willis |
title_full | Absent Internal Carotid Artery With Intact Circle of Willis |
title_fullStr | Absent Internal Carotid Artery With Intact Circle of Willis |
title_full_unstemmed | Absent Internal Carotid Artery With Intact Circle of Willis |
title_short | Absent Internal Carotid Artery With Intact Circle of Willis |
title_sort | absent internal carotid artery with intact circle of willis |
topic | Medical Education |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8431985/ https://www.ncbi.nlm.nih.gov/pubmed/34527477 http://dx.doi.org/10.7759/cureus.17090 |
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