Preschooler with wheezing Pediatric Imaging Cardiovascular March 31, 2023February 14, 2023 CXR (left) shows a right paratracheal mass. AP image from an UGI exam (middle) shows kinking of the upper esophagus while lateral (right) image shows a posterior indentation on the esophagus. The diagnosis was double aortic arch. Related Published March 31, 2023February 14, 2023