CTLA4 and nonpapillary renal cell carcinoma: Therefore, this study aimed to investigate the association between the expression of B7-H3 and CTLA-4 and the patterns and prognostic factors of ccRCC to provide a theoretical basis for the use of B7-H3 and CTLA-4 as predictive factors for ccRCC prognosis and as targets in ccRCC immunotherapy.