CTICasesSymptomatic Vascular Ring due to Right Aortic Arch with Diverticulum of Kommerell and Aberrant Subclavian Artery
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[...]. Symptomatic Vascular Ring due to Right Aortic Arch with Diverticulum of Kommerell and Aberrant Subclavian Artery. CTICases. Published September 18, 2015. https://str-case-explorer.pages.dev/c/2j8se
Imaging findings
A symptomatic child with dysphagia shows a persistent esophageal narrowing at the level of the aortic arch on fluoro study, with contrast hanging up. MR confirms a right aortic arch with a large diverticulum of Kommerell and an aberrant subclavian artery. The presence of a left ligamentum arteriosum completes the vascular ring.
Key takeaways
While most aberrant subclavian arteries are asymptomatic, the combination of a right aortic arch, a large diverticulum of Kommerell, and an aberrant subclavian artery, with the ligamentum arteriosum on the left, can form a tight vascular ring. This ring can compress the esophagus and trachea, causing symptoms like dysphagia, especially as the child grows.
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