Newborn with a distended abdomen Pediatric Imaging Gastrointestinal February 12, 2019July 16, 2019 Supine (left) and upright (right) AXR shows large air fluid levels in the duodenal bulb (to the right of the spine) and in the stomach (to the left of the spine). There is no distal bowel gas. The diagnosis was duodenal atresia. Related Published February 12, 2019July 16, 2019