Origin of the right vertebral artery from the right common carotid artery in the setting of an aberrant right subclavian artery: Case and retrospective review to determine frequency
Abstract
Anomalies of the vertebral arteries are rare. The second most common vertebral artery anomaly is the right vertebral artery arising from the right common carotid artery in the setting of an aberrant right subclavian artery (ARSA). We present a case of this rare anomaly and determine the relative frequency with which the right vertebral artery arises from the right subclavian artery vs the right common carotid artery in the setting of an ARSA by retrospectively reviewing over 500 patients with an ARSA and a contrast-enhanced CT. We found that in the setting of an ARSA the right vertebral artery arises from the right subclavian artery in 84% of patients and from the right common carotid artery in 16% of patients.
Fields of Study & Subjects
Intracranial Aneurysms: Treatment and Complications
Spinal Fractures and Fixation Techniques
Cerebrovascular and Carotid Artery Diseases
Publication details
- Journal / source
- Radiology Case Reports
- Publisher
- Elsevier BV
- Volume
- 21
- Issue
- 4
- Pages
- 1756–1761
- Publication date
- 9 February 2026
- Language
- EN