Mastocytosis, SystemicMastocytosisUrticaria PigmentosaMastocytosis, CutaneousProto-Oncogene Proteins c-kitTryptasesLeukemia, Mast-CellMast CellsBone MarrowBone Marrow ExaminationMethylhistaminesAnaphylaxisHypereosinophilic SyndromemRNA Cleavage and Polyadenylation FactorsLeukemia, Myelomonocytic, ChronicReceptor, Platelet-Derived Growth Factor alphaBenzamidesAntigens, CD2EosinophiliaPyrimidinesPiperazinesBiopsyStem Cell FactorPoint MutationMutationChymasesTrichinella spiralis