Mir MC, Capitanio U, Bertolo R, Ouzaid I, Salagierski M, Kriegmair M, Volpe A, Jewett MAS, Kutikov A, Pierorazio PM; Young Academic Urologists Kidney Cancer working group of the European Urological Association. Role of Active Surveillance for Localized Small Renal Masses. Eur Urol Oncol. 2018 Aug;1(3):177-187.
It describes the current role of surveillance for patients with renal mass less than 4 cm in diameter, providing a bridge for active treatment only in patients that require it. Active surveillance is a valid treatment option specially after a renal tumor biopsy.