Myelodysplastic syndromes (MDS), also known as myelodysplastic neoplasms, are conditions that can occur when the blood-forming cells in the bone marrow become abnormal, resulting in the marrow not making enough healthy new blood cells. This leads to low levels of one or more types of blood cells. MDS is considered a type of cancer., Patients with acute myeloid leukemia (AML) have conventionally received more intense therapy than patients with myelodysplastic syndrome (MDS). Although less intense therapies are being used more often in AML, the dichotomy between AML and MDS remains, with the presence of ≥20% myeloblasts in marrow or peripheral blood generally regarded as defining AML. Consequently, patients with 19% , The Myelodysplastic Syndromes (MDS) and Acute Myeloid Leukemia (AML) are a heterogeneous group of malignant clonal hematopoietic stem cell disorders. MDS is characterized by ineffective hematopoiesis, marrow dysplasia, peripheral blood cytopenia, and a high propensity for transformation into AML., , , .