骨髓增生异常 /骨髓增生性疾病(MDS/ MPD)是一组临床、实验室和形态学具有骨髓增生异常综合征 (MDS)和慢性骨髓增生性疾病 (CMPD)重叠表现的髓系克隆性疾病。有 MDS特征性病态造血现象又有 CMPD具备的一系以上血细胞增多 ,原始细胞 2 0 % ,无Ph染色体和 bcr/ abl融合基因有或 Myelodysplasia / myeloproliferative disease (MDS / MPD) is a group of myeloid clonal disorders in clinical, laboratory and morphologic superplastic manifestations of myelodysplastic syndrome (MDS) and chronic myeloproliferative disease (CMPD). MDS characteristic pathological hematopoiesis and CMPD have more than a series of hematopoietic cells, 20% of the original cells, Ph chromosome-free and bcr / abl fusion gene or