Abnormality of PDGFRB gene is associated with chronic myeloid leukemia (CML), acute myelogenous leukemia (AML), chronic myelomonocytic leukemia (CMML), acute lymphocytic leukemia (ALL), chronic eosinophilic leukemia (CEL), myeloproliferative disease (MPD), and other diseases. This evidence concerns the gene PDGFRB and Chronic Eosinophilic Leukemia, Not Otherwise Specified.