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Correa等~([1])认为胃黏膜癌变经历正常胃黏膜-浅表性胃炎-萎缩性胃炎-肠上皮化生-上皮内瘤变-胃癌的演变过程。高清晰度电子放大内镜及电子染色技术等消化内镜新技术的发展应用,提高了内镜下对胃黏膜微细结构及其变化的观察和识别能力。胃黏膜病变时,其表面形态变化主要包括腺管开口和微血管结构的改变,根据其变化的特点和特征,可早期发现病变、并大致预测黏膜病变的病理组织学类型。尤其是在胃癌前病变、早期胃癌(EGC)的诊
Correa et al. ([1]) believe that gastric cancer undergoes normal gastric mucosa-superficial gastritis-atrophic gastritis-intestinal metaplasia-intraepithelial neoplasia-gastric cancer. The development and application of the new endoscopic digestive endoscopy technique such as high-definition electronic magnifying endoscopy and electronic staining techniques have enhanced the ability of endoscopic observation and identification of the gastric mucosal fine structure and its changes. Gastric mucosal lesions, the surface morphological changes include changes in the opening and microvascular structure of the gland, according to its changing characteristics and characteristics, early detection of lesions, and roughly predict the pathological histological types of mucosal lesions. Especially in gastric precancerous lesions, early gastric cancer (EGC) diagnosis