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's ring) may cause swallowing problems (dysphagia) and can be treated with dilation of the stricture.
Update Date 11/20/2014
Updated by: Jenifer K. Lehrer, MD, Department of Gastroenterology, Frankford-Torresdale Hospital, Aria Health System, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.