骨髓增生异常综合征(Myelodysplastic Sy-ndrome,简称 MDS),大多认为是造血干细胞疾病。其病理改变为骨髓造血系统呈多样性增殖异常及外周血细胞形态学的变化。因本病有较高的机遇可转变为急性白血病,既往则称白血病前期,但经过临床观察有的 MDS 不一定转变为白血病,故很多学者认为二者不能划等号。 Myelodysplastic syndrome (Myelodysplastic Sy-ndrome, referred to as MDS), mostly considered as hematopoietic stem cell disease. The pathological changes of bone marrow hematopoietic system showed a variety of abnormal proliferation and changes in peripheral blood cell morphology. Due to the high chance of the disease can be transformed into acute leukemia, formerly known as leukemia, but after some clinical observations MDS may not be converted to leukemia, so many scholars believe that the two can not be equated.