Infant with vomiting after feeding Pediatric Imaging Gastrointestinal May 20, 2025February 27, 2025 AP sequential images from an upper GI exam show contrast flowing in a retrograde manner from the stomach back up into the esophagus, reaching ultimately the level of the thoracic inlet (not shown). The diagnosis was a moderate to marked amount of gastroesophageal reflux. Related Published May 20, 2025February 27, 2025