Project description:Analysis of the small non-coding RNA expression profile in cell-free serum RNA of patients with clear cell renal cell carcinoma (RCC) and patients with benign renal tumors (BRT) in order to identify novel non-invasive biomarkers for patients with RCC. Aims: (1) to compare the expression profile of patients with RCC and BRT. (2) to compare the expression profile of patients with localized (M=0) and metastatic (M=1) RCC.