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应用内镜下色素染色法作为食管癌胃癌的辅助诊断方法，可提高癌灶的检出率。现整理了临床采用其中３种方法的应用报告如下。１．美蓝复方碘溶液染色法诊断早期食管癌（１）病例与方法：对临床上有半年以上或突然加重的胸骨后疼痛，烧心、吞咽不适感的患者常规进行胃镜检查。
Using endoscopic pigment staining as an auxiliary diagnostic method for esophageal cancer can increase the detection rate of cancer foci. The application of the three methods for clinical use is now summarized as follows. 1. Melanin and compound iodine solution staining method for the diagnosis of early esophageal cancer (1) Cases and methods: patients with clinically more than half a year or sudden increase in the post-sternal pain, heartburn, swallowing discomfort, conventional gastroscopy.