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在日本,由于上消化道纤维内窥镜的广泛应用和诊断手段的不断改进,因而使早期胃癌的检出率不断提高,由70年代的30～35％上升至 80年代初的45～50％。同时,还对早期胃癌的始发阶段——小胃癌及微小胃癌进行研究,特别对 5 mm以下的微小病灶,经过单种染色或双重染色方法染色后,在内窥镜下直接用肉眼来区别和诊断病灶的良、恶性改变;或染色后通过放大,电视内窥镜
In Japan, due to the continuous improvement of the wide range of applications of upper gastrointestinal endoscopy and diagnostic methods, the detection rate of early gastric cancer has been continuously increased from 30 to 35% in the 1970s to 45 to 50% in the early 1980s. . At the same time, we also studied the early stages of early gastric cancer—small gastric cancer and tiny gastric cancer. Specially, the small lesions below 5 mm were stained with single staining or double staining, and they were visually distinguished under the endoscope. And the diagnosis of benign and malignant changes of the lesions; or after magnification by magnifying, video endoscopes