Patients with Barrett's esophagus (BE)/columnar lined esophagus (CLE) and adenocarcinoma are increasing,in whom 0.61％ BE/CLE would develop to adenocarcinoma.The prognosis of esophageal cancer is related to the tumor stage at diagnosis.To standardize the screening,diagnosis and therapy of BE and adenocarcinoma in China,31 digestive diseases and digestive endoscopy experts and digestive histologists drafted the consensus on the basis of clinical experience and references.The consensus defined BE as a complication of gastroesophageal reflux disease.The normal distal squamous epithelial lining is replaced by columnar epithelial.The squamous-columnar junction (SCJ) is above the gastroesophageal junction (GEJ) ≥ 1 cm and proved by endoscopy and histology.Adenocarcinoma developing in BE mucosa is called BE adenocarcinoma.The early BE adenocarcinoma is divided into 4 stages:M1,M2,M3 and M4,according to the depth of tumor infiltration without expanding beyond mucosa.Because 90％ esophageal cancers are esophageal s

作者：国家消化系统疾病临床医学研究中心；中华医学会消化内镜学分会；中国医师协会消化医师分会

来源：中华内科杂志 2017 年 56卷 9期