1病例资料患者,女,50岁,因“四肢瘀斑15d伴解黑便3d”于2014年6月7日收治入院。入院前15d无明显诱因下出现四肢散在瘀点瘀斑,伴有鼻出血、牙龈出血,未予以重视,入院前3d解黑色糊状便1次,量约300g,外院血常规示Hb 47g/L,PLT1×109/L,球蛋白89.9g/L,骨髓中可见巨核细胞成熟障碍,给予地塞米松15 mg/d及丙球20g/d 1 case data patients, female, 50 years old, because “limbs ecchymosis 15d with melena 3d ” admitted on June 7, 2014 admission. 15d before admission there is no obvious incentive to appear scattered limb petechia ecchymosis, accompanied by epistaxis, bleeding gums, did not pay attention, before admission 3d solution of black paste 1, the amount of about 300g, outside the hospital blood showed Hb 47g / L , PLT1 × 109 / L, globulin 89.9g / L, bone marrow can be seen megakaryocyte maturation, given dexamethasone 15 mg / d and c ball 20g / d