Myelodysplastic Syndrome, Not Otherwise Specified

**Semantic type:** Neoplastic Process

**Definition:** Myelodysplastic syndrome with low blasts characterized by the absence of defining genetic abnormalities.

**Synonyms:** - MDS, NOS - Myelodysplastic Syndrome with Low Blasts, Not Otherwise Specified - Myelodysplastic Syndrome with Ringed Sideroblasts - Myelodysplastic Syndrome, NOS - Myelodysplastic syndrome, NOS - Myelodysplastic syndrome, NOS - Myelodysplastic syndrome, unspecified