Hypereosinophilic SyndromeEosinophiliaSyndromeEosinophilsReceptor, Platelet-Derived Growth Factor alphamRNA Cleavage and Polyadenylation FactorsInterleukin-5TreponemaEosinophil Granule ProteinsChurg-Strauss SyndromeBenzamidesTreponema pallidumChemokine CCL17Endomyocardial FibrosisPiperazinesPyrimidinesMastocytosisPulmonary EosinophiliaMastocytosis, SystemicPrednisolonePrednisoneAdrenal Cortex HormonesOncogene Proteins, FusionSyphilis SerodiagnosisMyeloproliferative DisordersFatal OutcomeLeukocyte CountHydroxyureaGlucocorticoidsSyphilis