八例(男、女各4例)新患急性非淋巴细胞性白血病患者鉴定为染色体结构异常。这些病人占660例淋巴细胞性白血病人的1.2％。病人年龄相对年轻。其中4例,既有唐恩氏综合症又有非淋巴细胞性白血病均不足3岁,另4例为18、19、29、和90岁。这些白血病是各种各样的但没有M6型。两位病人有+21,两位有性染色体增加为 Eight patients (4 males and 4 females) were identified as chromosomal structural abnormalities in patients newly diagnosed with acute non-lymphocytic leukemia. These patients accounted for 1.2% of 660 patients with lymphocytic leukemia. The patient is relatively young. In 4 of them, both Down’s syndrome and non-lymphocytic leukemia were less than 3 years old, and the other 4 cases were 18, 19, 29, and 90 years old. These leukemias are various but not M6 type. Two patients had +21, two sex chromosomes increased to