Toddler who had a Nissen fundoplication for gastroesophageal reflux a year ago who is now retching with feeding Pediatric Imaging Gastrointestinal August 5, 2025April 17, 2025 AP (left) and lateral (right) images from an upper GI exam show the Nissen fundoplication wrap to be intact around the fundus of the stomach. However, part of the stomach has herniated above the level of the wrap. The diagnosis was Nissen fundoplication malfunction in the form of a para-Nissen herniation. Related Published August 5, 2025April 17, 2025