Refractory Anemia with Excess Blasts, also known as raeb, is related to refractory anemia and myelodysplastic syndrome. An important gene associated with Refractory Anemia with Excess Blasts is ASXL1 (ASXL Transcriptional Regulator 1). The drugs Cytarabine and Etoposide have been mentioned in the context of this disorder. Affiliated tissues include bone marrow and myeloid, and related phenotypes are fatigue and anemia of inadequate production