Patient Reported Outcome After Nephron Sparing Treatment of Small Renal Tumours

The overall aim of this prospective study is to assess and compare clinical outcome and health related quality of life after partial nephrectomy and cryoablation of renal tumors at stadium T1 in adult patients. The specific objectives is: * To describe treatment characteristics (treatment type, knife time, type of anaesthesia) with i) cryoablation and ii) partial nephrectomy on patients with T1 renal tumors in the Regions of Southern Denmark and Zealand. * To describe self-reported health related quality of life in adult patients with T1 renal tumors undergoing i) cryoablation and ii) partial nephrectomy in the Regions of Southern Denmark and Zealand. * To compare patient and tumor characteristics (age, sex, BMI, performance status, American Society of Anaesthesiologists' (ASA) classification group, comorbidity, other cancer diagnosis, smoking and alcohol use, tumor location and size, and tumor histology) in patients with T1 renal tumors treated with i) Cryoablation or ii) partial nephrectomy in the Regions of Southern Denmark and Zealand. * To compare complications, length of hospital stay, treatment success within follow-up, readmission rate and in-hospital mortality after after i) cryoablation and ii) partial nephrectomy of renal tumors at stadium T1 in adult patients in the Regions of Southern Denmark and Zealand. * To compare self reported quality of life after i) cryoablation and ii) partial nephrectomy of renal tumors at stadium T1 in adult patients in the Regions of Southern Denmark and Zealand. * To identify potential patient or tumor characteristics reducing quality of life after i) cryoablation and ii) partial nephrectomy of renal tumors at stadium T1 in adult patients in the Regions of Southern Denmark and Zealand. All eligible patients will be offered inclusion. Patients will be allocated to treatment group based on shared decision making between the patient and the treating urologist and recommendation from a multidisciplinary team conference. This reflecting the clinical practice.