Abnormal branching pattern of the aortic arch Double aortic arch 2012-04-08T01:46:10Z SNOMEDCT_US:10451007 HP:0011590 UMLS:C0265883 A conenital abnormality of the aortic arch in which the two embryonic aortc arches form a vascular ring that surrounds the trachea or esophagus and then join to form the descending aorta. Double aortic arch can cause symptoms because of compression of the esophagus (dysphagia, cyanosis while eating) or trachea (stridor). Fyler:2761