{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T15:22:44Z","timestamp":1787757764644,"version":"build-2784847793"},"reference-count":6,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"6","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,11]]},"abstract":"<jats:sec>\n                    <jats:title>Abstract<\/jats:title>\n                    <jats:p>Anomalous origin of extracranial and intracranial carotid system is subject to permutations of embryonal regression of the developing primitive embryonal vasculature. We present a case of segmental agenesis of left external carotid artery from the cervical carotid circulation. The entire left external carotid artery was supplied by the vertebral artery through muscular branches via the occipital artery. This anomaly of proximal external carotid agenesis with the entire vascular tree dependent on the posterior circulation via occipital artery muscular collaterals is unique and has not been described before. We discuss this anomaly with its embryology, clinical implications, and its relationship to a Proatlantal artery.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/0028-3886.333480","type":"journal-article","created":{"date-parts":[[2021,12,28]],"date-time":"2021-12-28T01:47:50Z","timestamp":1640656070000},"page":"1824-1827","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":3,"title":["Segmental Agenesis of External Carotid Artery from Common Carotid Artery with Anomalous Reformation through Occipital Artery Anastomoses"],"prefix":"10.4103","volume":"69","author":[{"given":"Sunil V","family":"Furtado","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Syed A","family":"Quryshi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aniruddha T","family":"Jagannatha","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alangar S","family":"Hegde","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"R1-66-20240907","first-page":"323","article-title":"Aortic arch origin of the left external carotid artery and Type II proatlantal fetal anastomosis","volume":"24","author":"Horowitz","year":"2003","journal-title":"AJNR Am J Neuroradiol"},{"key":"R2-66-20240907","doi-asserted-by":"crossref","first-page":"807","DOI":"10.1016\/j.jvs.2014.10.100","article-title":"Occurrence of a type 2 proatlantal intersegmental artery during carotid endarterectomy for symptomatic stenosis","volume":"64","author":"Liechty","year":"2016","journal-title":"J Vasc Surg"},{"key":"R3-66-20240907","doi-asserted-by":"crossref","first-page":"144","DOI":"10.5853\/jos.2015.17.2.144","article-title":"A functional perspective on the embryology and anatomy of the cerebral blood supply","volume":"17","author":"Menshawi","year":"2015","journal-title":"J Stroke"},{"key":"R4-66-20240907","doi-asserted-by":"crossref","first-page":"411","DOI":"10.1007\/s00381-008-0765-7","article-title":"Proatlantal intersegmental artery: A review of normal and pathological features","volume":"25","author":"Vasovi\u0107","year":"2009","journal-title":"Childs Nerv Syst"},{"key":"R5-66-20240907","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1007\/s00276-010-0685-6","article-title":"A case of a type II proatlantal artery with arteriovenous malformation","volume":"33","author":"Arr\u00e1ez-Aybar","year":"2011","journal-title":"Surg Radiol Anat"},{"key":"R6-66-20240907","doi-asserted-by":"crossref","first-page":"615","DOI":"10.1093\/icvts\/ivy141","article-title":"Isolated anomalous origin of the vertebral artery from the common carotid artery","volume":"27","author":"Kesler","year":"2018","journal-title":"Interact Cardiovasc Thorac Surg"}],"container-title":["Neurology India"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.4103\/0028-3886.333480","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T14:52:21Z","timestamp":1787755941000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.4103\/0028-3886.333480"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,11]]},"references-count":6,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2021]]}},"URL":"https:\/\/doi.org\/10.4103\/0028-3886.333480","relation":{},"ISSN":["0028-3886"],"issn-type":[{"value":"0028-3886","type":"print"}],"subject":[],"published":{"date-parts":[[2021,11]]}}}