Management algorithm for patients with small renal masses (≤ 4 cm) according to the Delayed Intervention and Surveillance for Small Renal Masses (DISSRM). Registry protocol. 3D, three-dimensional; CBC, complete blood count; CMP, comprehensive metabolic panel; CT, computed tomography; Pt/Ptt, prothrombin time/partial thromboplastin time; QoL, quality of life.