骨髓增生异常综合征(MDS)与巨幼细胞性贫血(M-egA)是两组本质不相同的疾病,前者是一种造血干细胞病,是属恶性细胞克隆增生的范畴,而后者由于叶酸和/或维生素B_(12)缺乏引起的DNA合成障碍导致骨髓细胞系列改变的一组良性贫血。实践中发现两者骨 Myelodysplastic syndrome (MDS) and megaloblastic anemia (M-egA) are two distinct groups of diseases, the former being a hematopoietic stem cell disorder that is a category of malignant cell clonal hyperplasia and the latter due to folic acid and / Or a deficiency in DNA synthesis caused by a deficiency in DNA synthesis leads to a group of benign anemias that alter the series of myeloid cells. In practice, both are found