Myelodysplastic Syndrome, Not Otherwise Specified without Dysplasia

**Semantic type:** Disease or Syndrome

**Definition:** A premalignant hematologic condition characterized by cytopenia and absence of bone marrow dysplasia. There are less than 5% blasts in bone marrow and less than 2% blasts in peripheral blood.

**Synonyms:** - MDS, NOS without Dysplasia