In contrast to MYC, MYB is only exceptionally rearranged in other hematological malignancies: in fact, only in rare cases of acute basophilic leukemia with MYB::GATA1 fusion transcripts, even rarer than BPDCN [45] and in T-ALL with t(6;7) and MYB duplication [46]. Here, GATA1 is linked to acute basophilic leukemia.