Document Detail

Right vertebral artery as the fourth branch of the aortic arch.
MedLine Citation:
PMID:  19159368     Owner:  NLM     Status:  MEDLINE    
The present report describes an anomalous case of the right vertebral artery arising as the last branch of the aortic arch identified in a 76-year-old Japanese male cadaver during dissection in the anatomical laboratory of Kanazawa Medical University. The aortic arch itself coursed normally but the right vertebral artery was uniquely situated at the fourth branch next to the brachiocephalic artery, the left common carotid artery, and the left subclavian artery. The anomalous right vertebral artery branched into the esophageal branch, the prevertebral branch, and the second right posterior intercostal artery, and finally entered the first costotransverse foramen at the thoracic region as it passed upward through the first to the seventh transverse foramina of the cervical vertebra. The left vertebral artery was normal. The development of the right vertebral artery may be described as follows: (i) the distal portion of the right dorsal aorta, which usually disappears, persisted and became united, via post-costal longitudinal anastomosis; (ii) the right dorsal aorta between the seventh and eighth intersegmental arteries lost its connection to the main structure; and (iii) the fusion of the originally paired dorsal aorta extended around the 11th segment, which was two segments away from the normal portion of the structure.
Nobuaki Higashi; Hiroki Shimada; Eriko Simamura; Toshihisa Hatta
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Anatomical science international     Volume:  83     ISSN:  1447-6959     ISO Abbreviation:  Anat Sci Int     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2009-01-22     Completed Date:  2009-02-24     Revised Date:  2011-02-08    
Medline Journal Info:
Nlm Unique ID:  101154140     Medline TA:  Anat Sci Int     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  314-8     Citation Subset:  IM    
Department of Molecular and Cell Structural Science (Anatomy), Kanazawa Medical University, Uchinada, Ishikawa, Japan.
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MeSH Terms
Aorta, Thoracic / abnormalities*,  anatomy & histology
Brachiocephalic Trunk / anatomy & histology
Carotid Artery, Common / anatomy & histology
Subclavian Artery / anatomy & histology
Vertebral Artery / abnormalities*,  anatomy & histology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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