Prognostic impact of FGFR3 and TP53 mutations on tumor progression in papillary non-invasive (pTa) tumors. Progression-free survival (PFS) is shown. (A) Univariate survival analysis illustrates that detected FGFR3 mutations (red curve, n = 14) predict shorter PFS compared to non-mutated FGFR3 gene status (blue curve, n = 15). (B) Kaplan–Meier analysis of tumors with mutated TP53 (red curve, n = 5) compared to wildtype TP53 (blue curve, n = 24). (C) Impact of double mutations on risk stratification of tumor progression is shown. Survival analysis of double mutations (red curve, n = 2) compared to all other combinations of mutated and non-mutated FGFR3 and TP53 genes (blue curve, n = 27) in pTa tumors. n: overall number of cases; events: overall events of tumor progression.