Glossary

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Barrett's esophagus: This is a condition caused by longstanding reflux, where the normal lining of the esophagus is replaced by abnormal cells. Patients with Barrett's have been shown to have a small increase in the risk of esophageal cancer. Most patients with Barrett's do not develop cancer, but because of the small increase in risk, they need to undergo surveillance with endoscopy every two to three years (this allows a diagnosis of cancer, if it occurs, at a curable stage).