BCR and cancer: RNA sequencing using the TruSight RNA Pan-Cancer Panel (1385 genes; Illumina, San Diego, CA, USA), routinely performed for research purposes, detected a BCR-ABL1 e13a2 fusion transcript (BCR, NM_004327.3, chr 22: 23631808, ex13; ABL1, NM_005157.4, chr 9: 133729451, ex2; grch37).