Gene Sequencing and Esophageal Brushing (IMAGE) Johns Hopkins Medicine Caption A combination of esophageal brushing and extensive genetic sequencing of the sample collected can detect chromosomal alterations in people with Barrett's esophagus, identifying patients at risk for progressing to esophageal cancer. Credit: Elizabeth Cook Credit Elizabeth Cook Usage Restrictions None 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.