Histiocytosis, Langerhans-CellErdheim-Chester DiseaseLangerhans CellsHistiocytosisHistiocytosis, Non-Langerhans-CellEosinophilic GranulomaXanthogranuloma, JuvenileHistiocytosis, SinusHistiocytesVulvar DiseasesAntigens, CD1Bone DiseasesOrbital DiseasesHistiocytic SarcomaDiabetes InsipidusPolydipsiaPenile DiseasesVinblastineRemission, SpontaneousOrbital NeoplasmsSkin DiseasesPrednisoneMannose-Binding LectinsFatal OutcomeLymphatic DiseasesTomography, X-Ray ComputedBiopsyIslets of LangerhansSkinMagnetic Resonance ImagingEpidermisPentetic AcidAntineoplastic Agents, PhytogenicSea-Blue Histiocyte SyndromeLangerhans Cell Sarcoma