Primary study objectives:
- To assess the current patterns of surgical or instrumental treatment and indications for RCC treatment and treatment outcomes in terms of objective and subjective improvement.
Secondary study objectives:
- To assess the peri-operative morbidity (30 days) by using the Clavien score.
- To define risk factors for the development of peri-operative morbidity after instrumental treatment.
- To assess quality of life related to the different treatment modalities.
- To asses pathological characteristics of the renal masses
Eventually collection on long-term follow (5-10 years) up would be recommended to all participant centres. Long-term data can be used to correlate initial pathology and treatment modality with oncological outcome as well as to test the predictive ability of different staging systems (TNM / Risk systems)