本文报道1例骨髓增生异常综合征(MDS),即原始细胞过多型难治性贫血(RAEB),在病程中白细胞减少期长达27个月之后,最终发展为类似慢性粒细胞白血病的血液学图象。患者70岁,女性,因贫血、疲劳和不适2个月入院。过去无特殊病史。体检除面色苍白外无异常。血细胞压积24%,血红蛋白8.6g%,白细胞4.200,中性30%,淋巴52%,单核14%,嗜酸性4%。血小板16万。光学显微镜显示形态学异常犹如大红细胞症, This article reports one case of myelodysplastic syndrome (MDS), or primed hyperinfarmic refractory anemia (RAEB), which eventually develops into a blood-like form of chronic myeloid leukemia after a leukopenia period of up to 27 months Learn the image. The patient was 70 years old and was admitted to hospital for 2 months because of anemia, fatigue and discomfort. In the past no special medical history. Except pale facial examination no exception. Hematocrit 24%, Hemoglobin 8.6g%, WBC 4.200, Neutral 30%, Lymph 52%, Mononuclear 14%, Acidophilic 4%. 160,000 platelets. Optical microscopy showed morphological abnormalities like polycythemia,