白血病是可发生在任何年龄段的具有较高发病率的造血系统恶性肿瘤,占癌症总发病数的5%[1]。近年来,随着白血病化疗方案的逐步完善,新型抗白血病制剂的应用以及各种造血干细胞移植的开展,使急性白血病联合化疗的完全缓解率达到80%～90%,同种或自身骨髓移植治疗后5年生存率达40% Leukemia is a hematopoietic malignancy that can occur at any age with a high morbidity, accounting for 5% of the total number of cancers [1]. In recent years, with the gradual improvement of leukemia chemotherapy programs, the application of new anti-leukemia preparations and the development of various hematopoietic stem cell transplantation, the complete remission rate of acute leukemia combined with chemotherapy reached 80% to 90%, allogeneic or own bone marrow transplantation After 5 years survival rate of 40%