Canadian Medical Guide > Diseases > Digestive System Diseases > Digestive System Abnormalities > Barrett Esophagus Terms and Definitions

Barrett Esophagus

Medical Definition:	A condition with damage to the lining of the lower ESOPHAGUS resulting from chronic acid reflux (ESOPHAGITIS, REFLUX). Through the process of metaplasia, the squamous cells are replaced by a columnar epithelium with cells resembling those of the INTESTINE or the salmon-pink mucosa of the STOMACH. Barrett's columnar epithelium is a marker for severe reflux and precursor to ADENOCARCINOMA of the esophagus.
Guide Notes:	note category; do not coord with INFANT, NEWBORN, DISEASES
Also Called:	Barrett Epithelium
Previously Indexed:	Esophageal Stenosis (1966-1980),Esophagitis, Peptic (1966-1980)

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