Multi-Detector Row Computed Tomographic Evaluation of a Rare Type of Complete Vascular Ring: Double Aortic Arch with Atretic Left Arch Distal to the Origin of Left Subclavian Artery
The second patient was a 3-year-old girl who suffered from failure to thrive and had recurrent respiratory infections. Results of barium esophagography suggested evidence of vascular ring.\nMulti-detector row computed tomography was conducted with similar settings to those used with the first patient (), and the same vascular anomaly was revealed with a more significant anatomic continuity among the LSCA, descending aortic diverticulum, and pouch over pulmonary artery. Furthermore, compressed trachea and esophagus were also revealed after post-processing with volume rendering (). Double aortic arch with distal left arch atresia was diagnosed, and the small pouch over pulmonary artery suggested a ductal diverticulum.