Histiocytosis, Langerhans-CellHistiocytosisEosinophilic GranulomaHistiocytosis, SinusErdheim-Chester DiseaseKeratinocytesHistiocytesHistiocytic SarcomaSkinXanthogranuloma, JuvenileHistiocytosis, Non-Langerhans-CellLangerhans CellsBone DiseasesVulvar DiseasesOrbital DiseasesAntigens, CD1Lymphatic DiseasesDiabetes InsipidusPolydipsiaSea-Blue Histiocyte SyndromePenile DiseasesForeheadVinblastineSkin DiseasesHypoaldosteronismRemission, SpontaneousFatal OutcomeOrbital NeoplasmsTomography, X-Ray ComputedCladribinePrednisoneSpinal DiseasesMannose-Binding LectinsLung Diseases, InterstitialBiopsyS100 ProteinsLung DiseasesMagnetic Resonance Imaging