Gastrointestinal Stromal TumorsSex Cord-Gonadal Stromal TumorsSertoli Cell TumorGranulosa Cell TumorStromal CellsProto-Oncogene Proteins c-kitGastrointestinal NeoplasmsBenzamidesThecomaPiperazinesPyrimidinesReceptor, Platelet-Derived Growth Factor alphaOvarian NeoplasmsSpinal CordCalbindin 2Fibrous Dysplasia, MonostoticUterine NeoplasmsNeprilysinMicroscopy, ElectronTumor Markers, BiologicalSpinal Cord InjuriesImmunohistochemistryVimentinEndometrial Stromal TumorsS100 Calcium Binding Protein GMesenchymomaMART-1 AntigenAntineoplastic AgentsSarcoma, Endometrial StromalNephroma, MesoblasticTumor BurdenCell Line, TumorDuodenal NeoplasmsMutationMitotic IndexNeoplasms, Connective TissuePyrrolesNeoplasms, Multiple PrimaryJejunal NeoplasmsEpithelioid CellsTumor Necrosis Factor-alphaLeiomyosarcomaStomach NeoplasmsIleal NeoplasmsTomography, X-Ray ComputedSex FactorsIntestinal NeoplasmsUmbilical CordSex CharacteristicsTreatment OutcomeIndolesAntigens, CD34Protein Kinase InhibitorsCarcinoid TumorCell ProliferationSarcomaNeoplasms, Complex and MixedCarney ComplexDNA Mutational AnalysisWilms TumorLeiomyomaPrognosisMicroscopy, Electron, ScanningNeoplasm MetastasisTime FactorsNeurofibromatosis 1Neoplasms, ExperimentalGenes, Tumor SuppressorTumor MicroenvironmentDigestive System Surgical ProceduresAdenocarcinomaGastrectomyNeoplasm ProteinsRetrospective StudiesMesenchymal Stromal CellsDisease ProgressionTumor Suppressor Protein p53Cells, CulturedSexRNA, MessengerS100 ProteinsDisease-Free SurvivalSignal TransductionReverse Transcriptase Polymerase Chain ReactionNeurilemmomaKidney NeoplasmsLiver NeoplasmsGastroscopyDNA, NeoplasmOmentumPeritoneal NeoplasmsNeuroendocrine TumorsTumor Suppressor ProteinsNeoplasm StagingMolecular Sequence DataBrain NeoplasmsMice, Inbred C57BLNeovascularization, PathologicGene Expression Regulation, NeoplasticXenograft Model Antitumor Assays