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本研究从1993年6月至1996年9月，对消化系统恶性肿瘤在病44诊的63例病人。男性42例．女性21例，应用外周血的改良法作了染色体G显带核型分析，结果得出：44例的染色体结构有异常表达，癌症符合率为69．8％，胃癌61．5％，肠癌为74％。肝胆癌83．3％。说明大多数的人体癌症外周血有可检出的染色体改变。63例中共检出染色体有30个断裂点，并且这些点有集中和重复的现象，即肠癌多集中在2号染色体着着丝粒部位，胃癌多集中在5号染色体上。这些规律性的研究结果可以应用于临床，作为消化系统检出恶性肿瘤的辅助方法。
In this study, from June 1993 to September 1996, 63 patients diagnosed with malignancy of the digestive system were diagnosed. 42 males. In 21 cases of females, chromosome G banding karyotype analysis was performed using the improved method of peripheral blood. The results showed that 44 cases had abnormal chromosome structure, the coincidence rate of cancer was 69.8%, and 61.5% of gastric cancer. It is 74%. Hepatobiliary cancer was 83.3%. This shows that most human cancers have detectable chromosome changes in peripheral blood. In 63 cases, there were 30 breakpoints in the chromosomes detected by the Chinese Communist Party, and these points had a phenomenon of concentration and repetition. In other words, the colorectal cancer was mostly concentrated on chromosome 2 centromeres, and gastric cancer was mostly concentrated on chromosome 5. The results of these regular studies can be applied clinically as an adjunct to the detection of malignancy in the digestive system.