Histiocytosis, Langerhans-CellLangerhans CellsHistiocytosisHistiocytosis, SinusHistiocytic SarcomaHistiocytesEosinophilic GranulomaErdheim-Chester DiseaseLymphatic DiseasesHistiocytosis, Non-Langerhans-CellIslets of LangerhansEpidermisAntigens, CD1Xanthogranuloma, JuvenileMannose-Binding LectinsSea-Blue Histiocyte SyndromeSkinLangerhans Cell SarcomaOrbital DiseasesBone DiseasesDermatitis, ContactVulvar DiseasesDiabetes InsipidusDendritic CellsHistiocytic Disorders, MalignantLymph NodesSkin DiseasesLectins, C-TypeBiopsyAntigens, CDDermisFatal OutcomeTomography, X-Ray ComputedRemission, SpontaneousPolydipsiaMucinosesImmunohistochemistryMice, Inbred BALB CHypothalamic DiseasesCell MovementPenile DiseasesDinitrofluorobenzeneGranuloma, Lethal MidlineAntigens, SurfaceS100 ProteinsVinblastineExophthalmosSphenoid SinusDermatitis, Allergic ContactHaptensKeratinocytesLung DiseasesCell CountDermatitis, PhotoallergicHistocompatibility Antigens Class IIMicroscopy, ElectronCell DifferentiationHistiocytoma, Benign FibrousPrednisoneLymphadenitisOrbital NeoplasmsT-LymphocytesSkin Diseases, ViralFlushingSpinal DiseasesPneumothoraxNucleoside Transport ProteinsAntibodies, MonoclonalAntigen PresentationMagnetic Resonance ImagingRetrospective StudiesAntigens, Differentiation, MyelomonocyticDelayed DiagnosisChemokine CCL20Injections, IntradermalPhenotypeOxazoloneImmunoenzyme TechniquesPicryl ChlorideCells, CulturedDog DiseasesPrenatal DiagnosisMice, Inbred C57BLEarly DiagnosisMastoiditisIslets of Langerhans TransplantationFlow CytometryScleral DiseasesTreatment Outcome