Rein 3D PRINT MECHANICS

Inclusion Criteria: * Adult patients (≥ 18 years of age) * Scheduled for surgical management with nephrectomy for kidney tumor in the urology department of Bordeaux University Hospital * CT scan available or scheduled for surgery * Consent expressed for integration of the UroCCR database * Expressed consent for participation in the Rein 3D Print Mechanics study * Patients affiliated or benefiting from social security system Exclusion Criteria: * \- Pregnant or breast-feeding women * Contraindication to MRI (Magnetic Resonance Imaging) * Contraindication to injection of gadoline contrast agents * Biopsy performed within 15 days prior to MRI, CT and ultrasound scans (risk of artifactual alteration, via iatrogenic hemorrhagic changes, of the biomechanical properties of the renal tumor and parenchyma). * Presence of thoracolumbar arthrodesis material * Obese patient (body mass index ≥ 30 kg/m²) * Cystic renal tumors with solid component (corresponding to either parietal thickening or tumor bud) \< 2 cm * Necrotic renal tumors with solid component (corresponding to either parietal thickening or tumor bud) \< 2 cm * Ascites * Person under legal protection * Difficulty understanding and expressing in French