RecruitingDevice studyCryaoablation Assisted Partial Nephrectomy a Non Ischemic ApproachPatients with renal masses eligible to partial nephrectomy often require arterial ischemia to control or prevent blood loss during this surgical procedure. This study aims to determine the safety and efficacy of renal cryoablation at the tumor bed, as a substitute measure or technique vs total or selective arterial renal ischemia.