Atsushi Hashio, Akira Uchino, Kaima Suzuki, Yasutaka Baba, Hiroki Kurita
{"title":"ct血管造影诊断右侧颈总动脉缺失伴左侧副大脑中动脉。","authors":"Atsushi Hashio, Akira Uchino, Kaima Suzuki, Yasutaka Baba, Hiroki Kurita","doi":"10.1007/s00276-025-03658-0","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>To describe a case involving congenital absence of the right common carotid artery (CCA) associated with a left accessory middle cerebral artery (MCA) that was diagnosed by computed tomography angiography (CTA).</p><p><strong>Methods: </strong>A 63-year-old woman with a narrow right internal carotid artery (ICA) incidentally detected on magnetic resonance imaging underwent CTA for further vascular evaluation.</p><p><strong>Results: </strong>CTA revealed absence of the right CCA, with the right external carotid artery (ECA) branching from the brachiocephalic trunk and the right ICA branching from the right subclavian artery. The ICA was hypoplastic. A left accessory MCA was also observed. Although blood flow in the right ICA was decreased, the patient was asymptomatic; thus, conservative treatment was administered, and her clinical course remained uneventful.</p><p><strong>Conclusion: </strong>Absence of the CCA is associated with the development of the aorta and various vascular variations; however, to our knowledge, this is the first report of an association with a contralateral accessory MCA, the existence of which may be considered incidental. Preoperative knowledge of this rare variation is important when considering endovascular treatment of cerebral aneurysms and other arterial lesions.</p>","PeriodicalId":49461,"journal":{"name":"Surgical and Radiologic Anatomy","volume":"47 1","pages":"142"},"PeriodicalIF":1.4000,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12103330/pdf/","citationCount":"0","resultStr":"{\"title\":\"Absent right common carotid artery associated with left accessory middle cerebral artery diagnosed by computed tomography angiography.\",\"authors\":\"Atsushi Hashio, Akira Uchino, Kaima Suzuki, Yasutaka Baba, Hiroki Kurita\",\"doi\":\"10.1007/s00276-025-03658-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>To describe a case involving congenital absence of the right common carotid artery (CCA) associated with a left accessory middle cerebral artery (MCA) that was diagnosed by computed tomography angiography (CTA).</p><p><strong>Methods: </strong>A 63-year-old woman with a narrow right internal carotid artery (ICA) incidentally detected on magnetic resonance imaging underwent CTA for further vascular evaluation.</p><p><strong>Results: </strong>CTA revealed absence of the right CCA, with the right external carotid artery (ECA) branching from the brachiocephalic trunk and the right ICA branching from the right subclavian artery. The ICA was hypoplastic. A left accessory MCA was also observed. Although blood flow in the right ICA was decreased, the patient was asymptomatic; thus, conservative treatment was administered, and her clinical course remained uneventful.</p><p><strong>Conclusion: </strong>Absence of the CCA is associated with the development of the aorta and various vascular variations; however, to our knowledge, this is the first report of an association with a contralateral accessory MCA, the existence of which may be considered incidental. Preoperative knowledge of this rare variation is important when considering endovascular treatment of cerebral aneurysms and other arterial lesions.</p>\",\"PeriodicalId\":49461,\"journal\":{\"name\":\"Surgical and Radiologic Anatomy\",\"volume\":\"47 1\",\"pages\":\"142\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2025-05-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12103330/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Surgical and Radiologic Anatomy\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1007/s00276-025-03658-0\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surgical and Radiologic Anatomy","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s00276-025-03658-0","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Medicine","Score":null,"Total":0}
Absent right common carotid artery associated with left accessory middle cerebral artery diagnosed by computed tomography angiography.
Purpose: To describe a case involving congenital absence of the right common carotid artery (CCA) associated with a left accessory middle cerebral artery (MCA) that was diagnosed by computed tomography angiography (CTA).
Methods: A 63-year-old woman with a narrow right internal carotid artery (ICA) incidentally detected on magnetic resonance imaging underwent CTA for further vascular evaluation.
Results: CTA revealed absence of the right CCA, with the right external carotid artery (ECA) branching from the brachiocephalic trunk and the right ICA branching from the right subclavian artery. The ICA was hypoplastic. A left accessory MCA was also observed. Although blood flow in the right ICA was decreased, the patient was asymptomatic; thus, conservative treatment was administered, and her clinical course remained uneventful.
Conclusion: Absence of the CCA is associated with the development of the aorta and various vascular variations; however, to our knowledge, this is the first report of an association with a contralateral accessory MCA, the existence of which may be considered incidental. Preoperative knowledge of this rare variation is important when considering endovascular treatment of cerebral aneurysms and other arterial lesions.
期刊介绍:
Anatomy is a morphological science which cannot fail to interest the clinician. The practical application of anatomical research to clinical problems necessitates special adaptation and selectivity in choosing from numerous international works. Although there is a tendency to believe that meaningful advances in anatomy are unlikely, constant revision is necessary. Surgical and Radiologic Anatomy, the first international journal of Clinical anatomy has been created in this spirit.
Its goal is to serve clinicians, regardless of speciality-physicians, surgeons, radiologists or other specialists-as an indispensable aid with which they can improve their knowledge of anatomy. Each issue includes: Original papers, review articles, articles on the anatomical bases of medical, surgical and radiological techniques, articles of normal radiologic anatomy, brief reviews of anatomical publications of clinical interest.
Particular attention is given to high quality illustrations, which are indispensable for a better understanding of anatomical problems.
Surgical and Radiologic Anatomy is a journal written by anatomists for clinicians with a special interest in anatomy.