Refractory Anemia

**Semantic type:** Neoplastic Process

**Definition:** A myelodysplastic syndrome characterized mainly by dysplasia of the erythroid series. Refractory anemia is uncommon. It is primarily a disease of older adults. The median survival exceeds 5 years. (WHO, 2001)

**Synonyms:** - Aregenerative Anemia - RA - Refractory anemia - Refractory anemia, unspecified