METTL3 showed vast expression differences in 22 tumor types (ACC, BLCA, BRCA, CESC, CHOL, COAD, GBM, HNSC, KIRC, KIRP, LAML, LGG, LUAD, LUSC, OV, PRAD, SARC, SKCM, STAD, THCA, UCEC, and UVM), although no uniform expression trend was observed among the three subgroups. This evidence concerns the gene METTL3 and neoplasm.