Mast-Cell SarcomaSarcoma, Clear CellMast CellsLangerhans Cell SarcomaSarcomaDendritic Cell Sarcoma, FollicularSarcoma, Small CellDendritic Cell Sarcoma, InterdigitatingSyndromeSarcoma, SynovialHistiocytic SarcomaSoft Tissue NeoplasmsSarcoma, EwingSarcoma, KaposiSarcoma, ExperimentalAvian Sarcoma VirusesCell DegranulationSarcoma 180Histamine ReleaseDendritic Cells, FollicularOncogene Proteins, FusionNephroma, MesoblasticLymphoma, Non-HodgkinTryptasesChymasesReceptors, IgESarcoma Viruses, Murinep-Methoxy-N-methylphenethylamineLeiomyosarcomaRNA-Binding Protein EWSLymphoma, Large B-Cell, DiffusePeripheral Nervous System NeoplasmsImmunoglobulin ECell TransdifferentiationDown SyndromeImmunohistochemistryMetabolic Syndrome XSarcoma, AvianMastocytosisMicrophthalmia-Associated Transcription FactorKidney NeoplasmsWilms TumorV(D)J RecombinationEye NeoplasmsSplenic NeoplasmsFatal OutcomeSarcoma, MyeloidProto-Oncogene Proteins c-kitTranslocation, GeneticCromolyn SodiumSarcoma, Endometrial StromalChromosomes, Human, Pair 22Histamine