Figure 1 ①② (March 16, 2016) Bone marrow pathology at initial diagnosis: hyperactive myelodysplasia (90%), lymphocytosis; ③④ (2016-11-15) Bone marrow pathology: poor myelodysplasia, rare megakaryocytes; Bone marrow pathology after treatment showed low myelodysplasia (about 30%) and rare megakaryocytes.