Teenager with substernal dysphagia Pediatric Imaging Gastrointestinal October 21, 2025May 29, 2025 Three lateral images from an upper GI exam shows dilation of the proximal esophagus which narrows to a beak distally which never opens up. A barium pill would not pass through the distal esophagus into the stomach. The diagnosis was achalasia. Related Published October 21, 2025May 29, 2025