For TMB analysis, we found that the 15 most highly mutated genes were TP53, TTN, KMT2D, MUC16, ARID1A, KDM6A, PIK3CA, SYNE1, KMT2C, RYR2, HMCN1, RB1, FAT4, MACF1, and EP300 in BLCA. This evidence concerns the gene ARID1A and bladder transitional cell carcinoma.