These 13 B-ALL cases included five with high hyperdiploid (HYPER), two with KMT2A rearrangements (MLL), two with ETV, and one each with DUX4 rearrangement (DUX4), low hypodiploid (HYPO), BCR-ABL1 (PH), and BCR-ABL1-like (PHL) (Figure 1C). Here, ABL1 is linked to acute lymphoblastic leukemia.