Barrett's esophagus is an acquired metaplastic abnormality in which the normal stratified squamous epithelium lining of the esophagus is replaced by an intestinal-like columnar epithelium.

Eosinophilic esophagitis (EoE) is a long-term immune system disease that causes inflammation to your esophagus, the tube that connects your mouth and stomach. Scientists think this may happen when ...