Authors have selected and presented radiofrequency tissue ablation for primary renal tumors and cellular therapy with dendritic cells or nonmyeloablative allogeneic transplantation as the main results in 2000-2001 on renal cell carcinoma. Furthermore other points are developed as hypertension increasing the risk of renal cell carcinoma, chromosomal events until renal cell carcinoma and prognosis of incidentally detected tumors.