In our study, they accounted for 4.4% of the studied cohort and included one case of RARB isotype gene rearrangement TBL1XR1::RARB (0.4%), one case of KMT2A-rearranged AML (0.4%) and five patients without fusions (1.9%). Here, TBL1XR1 is linked to acute myeloid leukemia.