Vascular NeoplasmsPulmonary ArterySarcomaPulmonary EmbolismDiagnostic ErrorsFatal OutcomeTomography, X-Ray ComputedArteriesSarcoma, EwingSarcoma, SynovialSarcoma, KaposiHypertension, PulmonaryAvian Sarcoma VirusesSarcoma, ExperimentalSarcoma 180Pulmonary CirculationCarotid ArteriesRenal ArteryCatheterization, Swan-GanzMesenteric ArteriesFemoral ArteryCerebral ArteriesSarcoma Viruses, MurineBasilar Artery