label: Myeloid/Lymphoid Neoplasms with Eosinophilia and Tyrosine Kinase Gene Fusions
label_lc: myeloid/lymphoid neoplasms with eosinophilia and tyrosine kinase gene fusions
description: A group of rare myeloid and lymphoid neoplasms characterized by rearrangement of the PDGFRA, PDGFRB, FGFR1, or JAK2 genes, resulting in the formation of tyrosine kinase fusion transcripts. Eosinophilia is a characteristic finding but it is not always present.