Barrette's oesophagus is diagnosed by

(B) Intestinal metaplasia # Barrett's esophagus is a serious complication of GERD.> In Barrett's esophagus, normal tissue lining the esophagus changes to tissue that resembles the lining of the intestine(columnar epithelium).> Barrett's esophagus is marked by the presence of columnar epithelia in the lower esophagus, replacing the normal squamous cell epithelium--an example of metaplasia.