Fig. 1

There was no brachiocephalic artery, and both the right common carotid artery and the right subclavian artery separately originated from the right aortic arch (RAA), and the left carotid arteries and subclavian arteries originated from the left aortic arch (LAA). The esophagus was displaced forward by the distal junction of both aortic arches and the descending aorta on the right side of the front of the thoracic vertebrae. The tumor was located in the esophagus between the aortic arch and the bifurcation of the trachea. CT Scans Show: Common carotid artery and subclavian artery on both sides (A1, preoperative;B1, postoperative); Vascular rings (A2, preoperative; B2, postoperative); Initial site of tumor (A3, preoperative; B3, postoperative)