Barrett’s esophagus is a change in the lining of the esophagus related to reflux of stomach contents into the esophagus. For a small minority, the disorder can progress to a type of cancer called esophageal adenocarcinoma. Read more about esophageal cancer.
http://www.uofmhealth.org/medical-services/digestive-and-liver-health/barretts-esophagus
Barrett’s Esophagus