作者对15例各种肠管恶性肿瘤组织,用直接及/或24小时培养法进行了染色体分析。在染色体分析之前,病人未曾接受过任何治疗。在大多数病例中,染色体的数目分布广泛。在15例中,13例只有1个众数;2例有双众数。在只有1个众数的13例中,9例为超二倍体,1例为亚二倍体,3例为二倍体。有双众数细胞的有2例,1例有2个超二倍体众数,另1例有超二倍体及二倍体众数。15 The authors performed chromosome analysis using direct and/or 24-hour culture methods on 15 cases of various intestinal malignant tumors. Before the chromosome analysis, the patient had not received any treatment. In most cases, the number of chromosomes is widely distributed. In 15 cases, 13 cases had only one mode; two cases had double modes. Of the 13 cases with only one mode, 9 were hyperdiploids, 1 was hypodiploid, and 3 were diploid. There were 2 cases with double-mode cells, 1 case with 2 hyper-diploid modes, and 1 case with hyperdiploid and diploid mode. 15