renal cell carcinoma chromophobe typechromophobe renal cellchromophobe cell carcinomachromophobe renal cell cancerchromophobe cellmetastatic renal cell carcinomarenal cell carcinoma metastasis sitesimmunotherapy renal cell carcinomadiagnosis of renal cell carcinomaprognosis renal cell carcinomaadvanced renal cell carcinomaprimary renal cell carcinoma