本文报导了17例尿殖系恶性肿瘤患者和20例非癌结石患者周血培养细胞的微核观察,结果:前者微核出现率为14.7‰,后者微核出现率为5.8‰。尿殖系中,恶性患者的微核出现率明显地高于非癌患者这一结果提示尿殖系患者的恶变倾向,可供临床参考。 This paper reports the micronucleus observation of peripheral blood cultured cells in 17 patients with urogenital malignancy and 20 patients with non-cancer stones. The results showed that the former had a micronucleus frequency of 14.7 ‰ and the latter had a micronucleus frequency of 5.8 ‰. In the urogenital system, the incidence of micronucleus in malignant patients was significantly higher than that in non-cancer patients. This result suggests a tendency toward malignant transformation in urogenital patients for clinical reference.