LeiomyosarcomaVena Cava, InferiorVena Cava, SuperiorSuperior Vena Cava SyndromeVena Cava FiltersVascular NeoplasmsVenae CavaeUterine NeoplasmsAzygos VeinRenal VeinsSmooth Muscle TumorSarcomaLeiomyomaSoft Tissue NeoplasmsRetroperitoneal NeoplasmsHeart NeoplasmsGenital Neoplasms, MalePhlebographyMuscle NeoplasmsNeoplasms, Vascular TissueTomography, X-Ray ComputedMesenchymomaSpermatic CordVenous ThrombosisBudd-Chiari SyndromePulmonary EmbolismHepatic VeinsIliac VeinFatal OutcomeBrachiocephalic VeinsVascular MalformationsLeiomyomatosisLiposarcomaSkull NeoplasmsReplantationJejunal NeoplasmsTreatment OutcomeHistiocytoma, Malignant Fibrous