M2b is a special granulocytic leukemia discovered in 1959 by the Institute of Hematology, Chinese Academy of Medical Sciences, and the Hospital for Blood Diseases when they summarized 127 cases of leukemia. 1986 was named M2b according to the FAB pattern of leukemia typing. t(8;21) abnormal karyotype of M2b was found in the same year, which is more consistent with the morphological and clinical features of t(8;21) AML reported abroad, so The M2b karyotype was found to have a t(8;21) abnormality in the same year. t(8;21)-negative M2AML was named M2b. 45 patients with AML with t translocation were diagnosed by conventional cytomorphological, cytochemical, cytogenetic, and molecular biological methods.
Although leukemia is a malignant disease of the hematopoietic tissue, advances in medical technology have made it curable. Leukemia m2b cure rate is very high, early detection, early treatment, usually must pay more attention to rest, timely quit smoking and alcohol, through Chinese medicine, has been able to achieve more than half of the patients to extend the survival period. A small number of patients can also be cured.