人体细胞遗传学的研究近十余年来已有很大进展,在血液学中也得到了广泛的研究和应用,迄今,已发现很多白血病患者的血和骨髓细胞染色体,有各种不同的变异(血细胞染色体检查方法有周围血液培养和骨髓直接检查法两种,由于白血病细胞不易在体外繁殖,故白血病患者一般多采用骨髓细胞直接法检查)如慢 The research on human cytogenetics has made great progress in recent ten years and has been widely studied and applied in hematology. So far, it has been found that many blood and bone marrow cell chromosomes of leukemia patients have various variations (Hemocytic chromosome examination of peripheral blood culture and bone marrow direct examination of two, because leukemia cells are not easy to breed in vitro, so patients with leukemia generally use more direct detection of bone marrow cells), such as slow