The esophagus is a tube that carries food from your mouth to your stomach. Chronic esophagitis is inflammation of the esophagus. Barrett's esophagus is a complication of chronic esophagitis.

Barrett's esophagus is a change in the cells that line the esophagus. Normal cells are flat-shaped squamous cells. Barrett's esophagus cells are shaped like a column. This cell change is called metaplasia. It is a premalignant phase that may result in cancer of the esophagus if it is not treated.

The exact cause of Barrett's esophagus is not known. It may result from damage to the esophagus caused by the chronic reflux of stomach acid. Frequent or chronic reflux of stomach acid into the esophagus is called gastroesophageal reflux disease or GERD.

Gastroesophageal Reflux
Gastroesophageal Reflux
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