[Clinical outline of Barrett's esophagus]

Barrett's esophagus is one of the important gastrointestinal disease in Europe and the United States. It was recognized as not only complication of reflux esophagitis, but also pre-malignant lesion of adenocarcinoma. Recently, realization of Barrett's esophagus is attentioned in Japan, because increasing of reflux esophagitis for westernization of eating habit, living habit and aging of the population. In this section, we present general consideration and clinical research of Barrett's esophagus. We expect Barrett's esophagus will gradually increase near the future and need to research abundantly about controversial point of Barrett's esophagus. We also think it is important to accumulate intensively the clinical data of Barrett's esophagus patients.