Barrett's esophagus image (IMAGE) DOE/Oak Ridge National Laboratory Caption A black and white illustration of a microscopic piece of the esophagus shows the abnormal tissue of Barrett’s esophagus. Credit National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health Usage Restrictions Credit the creator License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.