FZD6 and urothelial carcinoma: Interestingly, some of these genes, such as ETV4, PTGES, CTBP2, FZD6, EAF2, and IKZF6, have not been implicated in urothelial carcinoma; thus, these genes are potential candidates for diagnostic, prognostic, and therapeutic biomarkers of urothelial carcinoma.