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Double aortic arch

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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A double aortic arch is an anomaly of the arch resulting in two arches that surround the oesophagus and trachea in the superior mediastinum to form a vascular ring. Dysphagia and respiratory distress may follow.

It results from a failure of regression of the section of the right dorsal aorta between the seventh intersegmental artery and the junction with the left dorsal aorta.

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