NephrectomyKidney NeoplasmsCarcinoma, Renal CellNephroma, MesoblasticAdenoma, OxyphilicLaparoscopyWilms TumorRetroperitoneal SpaceHand-Assisted LaparoscopyFree RadicalsUrologyPyelonephritis, XanthogranulomatousAngiomyolipomaKidneyRetrospective StudiesRenal VeinsNeoplasm StagingTreatment OutcomeVena Cava, InferiorImmunohistochemistryTomography, X-Ray ComputedHydroxyl RadicalSurgical Procedures, Minimally InvasiveFollow-Up StudiesPrognosisPostoperative ComplicationsFree Radical ScavengersNeoplasm Recurrence, LocalSEER ProgramSurvival AnalysisTime FactorsSpecimen HandlingSurvival RateLiving DonorsKaplan-Meier EstimatePhysician's Practice PatternsPancreatic NeoplasmsRoboticsKidney TransplantationWarm IschemiaTissue and Organ HarvestingNeoplasmsCohort StudiesElectron Spin Resonance SpectroscopyNeoplasms, Cystic, Mucinous, and SerousRenal ArteryNeoplasms, Multiple PrimaryUnited States