Mast-Cell SarcomaSarcoma, Clear CellMast CellsLangerhans Cell SarcomaSarcomaDendritic Cell Sarcoma, FollicularSarcoma, Small CellDendritic Cell Sarcoma, InterdigitatingSarcoma, SynovialSoft Tissue NeoplasmsHistiocytic SarcomaSarcoma, EwingSarcoma, ExperimentalSarcoma, KaposiAvian Sarcoma VirusesCell DegranulationSarcoma 180Histamine ReleaseDendritic Cells, FollicularOncogene Proteins, FusionNephroma, MesoblasticLymphoma, Non-HodgkinTryptasesChymasesLeiomyosarcomaReceptors, IgESarcoma Viruses, MurinePeripheral Nervous System Neoplasmsp-Methoxy-N-methylphenethylamineKidney NeoplasmsImmunohistochemistryRNA-Binding Protein EWSLymphoma, Large B-Cell, DiffuseEye NeoplasmsSkin NeoplasmsCell TransdifferentiationImmunoglobulin ESplenic NeoplasmsMastocytosisSarcoma, AvianWilms TumorMicrophthalmia-Associated Transcription FactorV(D)J RecombinationTumor Markers, BiologicalProto-Oncogene Proteins c-kitPancreatic NeoplasmsNeoplasms, ExperimentalNeoplasmsSarcoma, MyeloidFatal OutcomeSarcoma, Endometrial StromalTranslocation, GeneticMelanomaCromolyn SodiumMediastinal NeoplasmsMastocytosis, SystemicHistamine