Prognostic factors in patients with small renal masses: a comparison between <2 vs. 2.1-4 cm renal cell carcinomas.

Our results validate the presence of prognostically more favorable CSM outcomes in RCC < 2 cm vs. 2.1-4 cm, across all histological subtypes and grades. Moreover, temporal improvements were also recorded in both <2 and 2.1-4 cm RCC groups, with more pronounced improvements in patients with 2.1-4 cm renal masses. However, prospective randomized trials are needed to further confirm our results.