Atlas of Gastroenterological Endoscopy
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Barrettīs epithelum - short segment
Barrettīs Epithelum - short segment Barrettīs mucosa is a metaplastic columnar epithelium, that has replaced the native squamous cells at the esophagocardial junction. Itīs thought to provide greater resistance to gastroesophageal reflux, which in turn is discussed to be causative. The left picture shows these dark red, finger- like epithelial islands amidst the normal, uninflammed, whitish, squamous epithelium. Since Barrettīs esophagus is a precancerous lesion, it needs regular biopsy.
Barrettīs -epithelum (extensive disease)
Barrettīs epithelum In this severe case all squamous epithelium of the lower esophagus is replaced by metaplastic Barrettīs epithelium (columnar epithelium).