本文对17例消化道癌患者癌组织中的锌、铜和硒浓度进行了分析。与非癌变组织比较,胃癌变组织中锌含量降低、铜含量和铜/锌值升高,食管癌变组织中二种微量元素的变化趋势与胃癌变组织相同。胃和食管癌变组织与非癌变组织中的硒含量无差异。 This article analyzed the concentrations of zinc, copper and selenium in cancerous tissue of 17 patients with gastrointestinal cancer. Compared with non-cancerous tissues, the zinc content in gastric cancer tissues was decreased, the copper content and the copper/zinc value were increased, and the trend of the two trace elements in esophageal cancerous tissue was the same as that in gastric cancer tissues. There was no difference in selenium content between cancerous and esophageal cancerous tissues and non-cancerous tissues.