HTR2A was lowly expressed in bladder urothelial carcinoma (BLCA), BRCA, CESC, COAD, ESCA, GBM, LUAD, LUSC, OV, PRAD, READ, SKCM, TGCT, THCA, UCEC, and UCS while being highly expressed in LGG, PAAD, STAD, SARC, and THYM (Figure 3F). Here, HTR2A is linked to bladder transitional cell carcinoma.