A solution containing a dye (barium), which is visible on x-rays, has been swallowed (upper GI series) and x-rays have been taken of the esophagus. There is a narrowing near the stomach (indicated by the arrow). This non-cancerous ring of tissue (Shatzki ring) may cause swallowing problems (dysphagia) and can be treated with dilation of the stricture.
Review Date 10/31/2022
Updated by: Michael M. Phillips, MD, Emeritus Professor of Medicine, The George Washington University School of Medicine, Washington, DC. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.