CTICasesRetroesophageal Right Vertebral Artery from Diverticulum of Kommerell (Aortic Arch Variant)
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Imaging findings
CT imaging of the aortic arch demonstrates a common origin of the right brachiocephalic and left common carotid arteries. A small diverticulum is present, from which a tiny retroesophageal right vertebral artery originates.
Key takeaways
Congenital aortic arch anomalies include variations in brachiocephalic vessel origins. A retroesophageal right vertebral artery originating from a diverticulum (often a diverticulum of Kommerell, though not explicitly named for this specific configuration here) is a rare but notable variant. Awareness of such vascular anomalies is important in surgical planning and interpretation of chest imaging.
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