Renal VeinsVena Cava, InferiorVena Cava FiltersVeinsAzygos VeinVena Cava, SuperiorVenae CavaePhlebographyVenous ThrombosisIliac VeinPortal VeinRenal Nutcracker SyndromeVascular NeoplasmsHepatic VeinsFemoral VeinFlank PainBudd-Chiari SyndromeSaphenous VeinPulmonary EmbolismConstriction, PathologicSuperior Vena Cava SyndromeMesenteric VeinsLeiomyosarcomaVaricoceleVaricose VeinsRenal ArteryTomography, X-Ray ComputedInferior ColliculiPulmonary VeinsSplenic VeinJugular VeinsAnastomosis, SurgicalHematuriaNeoplasms, Vascular TissueNephrectomyAnatomy, RegionalTreatment OutcomeKidneyArteriovenous FistulaReplantationVascular Surgical ProceduresVascular MalformationsThrombosisDevice RemovalThrombectomyAorta, AbdominalHeart AtriaForeign-Body MigrationUmbilical VeinsRenal Artery ObstructionSubclavian VeinPyelonephritis, XanthogranulomatousCadaverUltrasonography, Doppler, ColorConstrictionVascular DiseasesHypertension, RenovascularPopliteal VeinKidney NeoplasmsAngiographyDogsLigationTime FactorsAngiomyolipomaHeterotaxy SyndromeRetrospective StudiesBlood Vessel Prosthesis ImplantationMagnetic Resonance ImagingHypertension, RenalScimitar SyndromeAtrial FlutterBrachiocephalic VeinsSitus InversusVenous PressureFollow-Up StudiesMesenteric Artery, InferiorResins, PlantSyndromeNephrotic SyndromeCarcinoma, Renal Cell