MediastinumMediastinal NeoplasmsNeoplasm MetastasisLymphatic MetastasisMediastinal DiseasesMediastinal CystTomography, X-Ray ComputedLung NeoplasmsMediastinoscopyThoracotomyRadiography, ThoracicMediastinitisNeoplasm InvasivenessThymus NeoplasmsLiver NeoplasmsGoiter, SubsternalThoracic Surgery, Video-AssistedThoracic Surgical ProceduresThymomaThoracic NeoplasmsPleural CavityThoracoscopyPrognosisBronchogenic CystNeoplasm StagingCell Line, Tumor3-IodobenzylguanidineFatal OutcomeTreatment OutcomeBreast NeoplasmsPneumomediastinum, DiagnosticImmunohistochemistryLymph NodesAdenocarcinomaMelanomaRetrospective StudiesLymphangioma, CysticChoristomaSternumSuperior Vena Cava SyndromeTumor Markers, BiologicalRadiopharmaceuticalsNeoplasm TransplantationEsophageal CystVisible Human ProjectsMice, NudeIncidental FindingsNeoplasm Recurrence, LocalCarcinomaLymph Node ExcisionBrain NeoplasmsColorectal NeoplasmsMediastinoscopesGene Expression Regulation, NeoplasticCombined Modality TherapyGanglioneuromaRetroperitoneal NeoplasmsThyroid NeoplasmsEsophageal PerforationParathyroid NeoplasmsCell MovementGastroscopesCarcinoma, Squamous CellBronchial NeoplasmsLiposarcomaNeurilemmomaMagnetic Resonance ImagingPlasma Cell Granuloma, PulmonarySeminomaBiopsyEndosonographyNeckSurvival AnalysisRadionuclide ImagingPositron-Emission TomographySurvival RateThymus HyperplasiaMelanoma, ExperimentalPneumonectomyFollow-Up StudiesMediastinal EmphysemaSkin NeoplasmsProstatic NeoplasmsEsophagectomyNeovascularization, PathologicSpinal NeoplasmsThyroidectomyEsophageal NeoplasmsLymphangiomaChylothoraxPleuraFluorodeoxyglucose F18Neoplasms, Complex and MixedStomach NeoplasmsPleural NeoplasmsThymectomyBiopsy, Fine-NeedleDisease ProgressionBronchoscopyHematemesis