BCR and chronic myelomonocytic leukemia: For example, ZMYM2::FGFR1 most commonly presents as a T-lymphoblastic leukemia/lymphoma, BCR::FGFR1 and TPR::FGFR1 present histologically similar to chronic myeloid leukemia (CML), and CEP43::FGFR1 and CNTRL::FGFR1 show features similar to chronic myelomonocytic leukemia (CMML).