Mast-Cell SarcomaSarcoma, Clear CellMast CellsLangerhans Cell SarcomaSarcomaDendritic Cell Sarcoma, FollicularSarcoma, Small CellDendritic Cell Sarcoma, InterdigitatingSarcoma, SynovialHistiocytic SarcomaSoft Tissue NeoplasmsSarcoma, EwingSarcoma, ExperimentalSarcoma, KaposiAvian Sarcoma VirusesCell DegranulationSarcoma 180Histamine ReleaseOncogene Proteins, FusionDendritic Cells, FollicularNephroma, MesoblasticLymphoma, Non-HodgkinTryptasesChymasesReceptors, IgESarcoma Viruses, Murinep-Methoxy-N-methylphenethylamineLeiomyosarcomaRNA-Binding Protein EWSLymphoma, Large B-Cell, DiffusePeripheral Nervous System NeoplasmsImmunohistochemistryCell TransdifferentiationNeoplasm MetastasisImmunoglobulin EKidney NeoplasmsEarly Detection of CancerSarcoma, AvianTumor Markers, BiologicalMastocytosisMicrophthalmia-Associated Transcription FactorWilms TumorReverse Transcriptase Polymerase Chain ReactionV(D)J RecombinationMelanomaEye NeoplasmsSplenic NeoplasmsNeoplasm TransplantationProto-Oncogene Proteins c-kitGene Expression Regulation, NeoplasticSkin NeoplasmsSarcoma, MyeloidSarcoma, Endometrial StromalNeoplasm Recurrence, LocalCromolyn SodiumTranslocation, GeneticPrognosisFatal OutcomeLung NeoplasmsHistamineNeoplasms, ExperimentalBone NeoplasmsLaser Capture Microdissection