VasculitisSteroidsSystemic VasculitisRetinal VasculitisAnti-Neutrophil Cytoplasmic Antibody-Associated VasculitisVasculitis, Central Nervous SystemPolyarteritis NodosaChurg-Strauss SyndromeSkin Diseases, VascularRheumatoid VasculitisMicroscopic PolyangiitisPurpura, Schoenlein-HenochGonadal Steroid HormonesReceptors, SteroidCryoglobulinemiaArteritisMucocutaneous Lymph Node SyndromePrednisoloneBehcet SyndromeGlomerulonephritisGlucocorticoidsGiant Cell ArteritisAdrenal Cortex HormonesImmunosuppressive AgentsCryoglobulinsMethylprednisolonePurpuraSteroid 21-HydroxylaseTakayasu ArteritisAutoimmune DiseasesProgesteroneAnti-Inflammatory AgentsAnabolic AgentsAutoantibodiesEstradiolLeg DermatosesBiopsyPlasmapheresisMercuric ChlorideLupus Erythematosus, SystemicUrticariaPulse Therapy, DrugTestosteroneAzathioprineAntigen-Antibody ComplexAntibodies, Monoclonal, Murine-DerivedPlasma ExchangeSteryl-SulfataseTemporal ArteriesDehydroepiandrosteroneCyclophosphamidePregnanesSteroid HydroxylasesTreatment OutcomeCogan SyndromePrednisoneArthritis, RheumatoidSkin DiseasesPregnenoloneArthus ReactionImmunoglobulins, IntravenousCecal DiseasesRetrospective StudiesSerine EndopeptidasesScleritisImmunoglobulin GImmune Complex DiseasesNeutrophilsRheumatoid FactorDrug Therapy, CombinationFever of Unknown OriginImmunologic FactorsFatal OutcomePeripheral Nervous System DiseasesRecurrenceEtiocholanoloneAndrostanesAndrosteroneSkinNecrosisRemission InductionSteroid IsomerasesAndrostenedioneRheumatic DiseasesDexamethasone