Infant with dysphagia Pediatric Imaging Cardiovascular March 24, 2023February 14, 2023 AP image (left) from an UGI exam shows a right sided aortic arch and an indentation running across the upper esophagus which on the lateral image (right) shows the indentation to be posterior to the esophagus. The diagnosis was right aortic arch with an aberrant left subclavian artery. Related Published March 24, 2023February 14, 2023