Receptor, Platelet-Derived Growth Factor alphaGastrointestinal Stromal TumorsProto-Oncogene Proteins c-kitHypereosinophilic SyndromeBenzamidesPiperazinesPyrimidinesmRNA Cleavage and Polyadenylation FactorsEpithelioid CellsGastrointestinal NeoplasmsDNA Mutational AnalysisMutationMelanoma, AmelanoticIntestinal NeoplasmsChromosomes, Human, Pair 4Gene AmplificationReceptor, Platelet-Derived Growth Factor betaImmunohistochemistryOncogene Proteins, FusionExonsNeoplasms, Complex and MixedEosinophiliaIn Situ Hybridization, FluorescenceMastocytosis, SystemicTumor Markers, BiologicalReceptors, Platelet-Derived Growth FactorInterstitial Cells of CajalProtein Kinase InhibitorsCarney ComplexMyoepitheliomaParagangliomaPlatelet-Derived Growth FactorBrain Stem NeoplasmsGliomaBrain NeoplasmsGene DosageSuccinate DehydrogenaseElectron Transport Complex IIGene Expression Regulation, NeoplasticAntineoplastic AgentsNerve Sheath NeoplasmsGene FusionCarcinoma, Small CellGlioblastomaDNA, NeoplasmPrognosisCarcinoma, Merkel CellDrug Resistance, NeoplasmGene Expression ProfilingIntestinal PolypsPhthalazinesGene RearrangementComparative Genomic HybridizationCraniofacial AbnormalitiesBase SequenceNeurofibromatosis 1OligodendrogliomaMyeloproliferative DisordersProto-Oncogene Proteins B-rafSignal TransductionReverse Transcriptase Polymerase Chain ReactionPolymerase Chain ReactionFatal OutcomeNeoplasm GradingCleft PalateTissue Array AnalysisKaplan-Meier EstimateMolecular Sequence DataVascular Endothelial Growth Factor Receptor-2Stomach NeoplasmsProtein-Tyrosine KinasesPolymorphism, Single-Stranded ConformationalCell ProliferationOligonucleotide Array Sequence AnalysisBiopsyChloride ChannelsPhenotypeStromal CellsCell Line, TumorLeiomyomaGastrointestinal TractAntigens, CD34Mutation, MissenseDisease-Free SurvivalGermanyPyrrolesSequence Analysis, DNACell ShapeGene ExpressionSequence DeletionPolymorphism, Single NucleotideChromosome DeletionTranscriptomeIntestine, SmallMice, Mutant StrainsReceptor, Epidermal Growth FactorTOR Serine-Threonine KinasesProtein IsoformsNeoplasm ProteinsPhosphorylation