CTICasesDouble aortic arch
Imaging findings
CT shows a continuous double aortic arch forming a vascular ring that compresses the trachea. Coronal views show a characteristic v-shaped origin of the right and left arches.
Key takeaways
A double aortic arch is the most common symptomatic vascular ring, caused by persistence of both the right and left embryonic aortic arches. On coronal CT, the v-shaped bifurcation of the ascending aorta is diagnostic.
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