A 25-year-old man presented...cytometry analysis confirmed involvement by T-lymphoblastic leukemia/lymphoma...An FGFR1 (8p11) gene rearrangement was detected in the lymph node...Cytogenetics revealed t(8;13) in the bone marrow (panel D)...Newer TKIs and small molecule FGFR1 inhibitors (pemigatinib; clinical trial FIGHT-203) may be effective bridging therapies to stem cell transplant.