Most cases of<unk>  are associated with rearrangements in PDGFRA, PDGFRB, or FGFR1.<unk>  not otherwise specified <unk>  NOS) is a form in which BCR-ABL1 fusion genes and PDGFRA, PDGFRB, and FGFR1 rearrangements are not found.
Chronic eosinophilic leukemia
Acute eosinophilic leukemia
Tropical eosinophilia
Thymoma with immunodeficiency
Diffuse infiltrative lymphocytosis syndrome
Hemophagocytic lymphohistiocytosis
Mast cell leukemia
Hereditary pyropoikilocytosis