CAG is a precancerous condition of gastric carcinoma, its diagnosis must be based on histopathology. Therefore, it is necessary to take multiple biopsies at gastric antrum and corpus to improve the accurate diagnosis rate of CAG.

• CAG是胃癌癌前状态之一,鉴于其诊断需依赖组织病理学检查,故强调内镜检查时应在胃窦和胃体部作多部位、多处活检,以提高CAG的确诊率。