Glossary

Barrett's esophagus

Barrett's esophagus

Barrett-Ösophagus

In Barrett's oesophagus, the mucous membrane of the lower oesophagus changes, usually as a result of many years of reflux of stomach acid. This change is regarded as a precursor stage that can increase the risk of oesophageal cancer and is therefore monitored.

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Editorial content · as of 9/5/2026