白血病为造血组织的肿瘤性恶性增生性疾病,是小儿时期最常见的恶性肿瘤之一。我院儿科自1973～1982年10年间共收治15岁以下的小儿白血病181例,占同期白血病住院数555例的32.61%。本组病例均经血象、骨髓细胞分类检查,多数病例均作了数种组化染色和热溶试验等,有的并经淋巴结活检,17例并作了尸体解剖,诊断确切,兹分析于下。一、各型白血病的发生率 Leukemia is a malignant neoplastic disease of hematopoietic tissue and is one of the most common malignancies in childhood. 181 cases of pediatric leukemia under 15 years of age were treated in our hospital from 1973 to 1982, accounting for 32.61% of the 555 cases of leukemia in the same period. This group of patients by blood, bone marrow cell sorting examination, most cases were made of several histochemical staining and hot-melt test, and some by lymph node biopsy, and 17 cases were autopsy, the diagnosis is accurate, it is analyzed in the next . First, the incidence of various types of leukemia