CTICasesAberrant Right Vertebral Artery
Imaging findings
CT angiography demonstrates a small aortic diverticulum arising from the proximal descending aorta (which also gives rise to the bronchial arteries) that gives origin to an aberrant right vertebral artery crossing the mediastinum to ascend on the right.
Key takeaways
An aberrant right vertebral artery is a rare congenital vascular variant. It can arise directly from the aortic arch or descending aorta, or from a common bronchial-vertebral trunk or aortic diverticulum, and should not be mistaken for a vascular anomaly or aneurysm.
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