白血病是血细胞癌。它从骨中的软组织(骨髓)开始。骨髓是制造血细胞的地方。
Leukemia is cancer of the blood cells. It starts in the bone marrow, the soft tissue inside most bones. Bone marrow is where blood cells are made.
当血细胞发生了错误的变化时可能使得某种成熟血细胞的数量不足，从而导致白血病、贫血或骨髓造血衰竭等。
For example, when blood cells make wrong decisions the result can be a lack of a sufficient number of certain types of mature blood cells causing leukemia, anemia, or bone marrow failure.
MDS是一组异质性很强的疾病，其特征为：血细胞减少、无效造血及进展为急性髓系白血病风险。
MDS is a group of very heterogeneous disorders characterized by cytopenias, inefficient hematopoiesis and the risk of progression into acute myeloid leukemia.
长期接触苯可引起骨髓细胞毒性，引起外周血细胞减少、再生障碍性贫血甚至白血病等多种造血系统功能紊乱。
It has been reported that chronic exposure to benzene leaded to the reduction of blood cells, bone marrow suppression, even aplastic anemia and leukemia.
骨髓部分或全部由单一造血细胞成分取代，脾的正常结构被破坏并由单一细胞取代；其他器官单一性细胞浸润并无炎症反应，符合白血病的诊断。
All the cases with leukemia showed badly emciated, splenomegaly, spleen and bone marrow with replacement of single cell type, the infiltration of leukemic cell in lung, liver and so on.
骨髓部分或全部由单一造血细胞成分取代，脾的正常结构被破坏并由单一细胞取代；其他器官单一性细胞浸润并无炎症反应，符合白血病的诊断。
All the cases with leukemia showed badly emciated, splenomegaly, spleen and bone marrow with replacement of single cell type, the infiltration of leukemic cell in lung, liver and so on.
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