Histiocytosis, Langerhans-CellHistiocytesLangerhans CellsHistiocytosisEosinophilic GranulomaXanthogranuloma, JuvenileHistiocytosis, SinusErdheim-Chester DiseaseVulvar DiseasesHistiocytic SarcomaAntigens, CD1Bone DiseasesSea-Blue Histiocyte SyndromeOrbital DiseasesHistiocytosis, Non-Langerhans-CellDiabetes InsipidusPolydipsiaPenile DiseasesVinblastineSkin DiseasesLymphatic DiseasesRemission, SpontaneousOrbital NeoplasmsPrednisoneFatal OutcomeMannose-Binding LectinsBiopsyTomography, X-Ray ComputedSkinHistiocytic Disorders, MalignantIslets of LangerhansImmunohistochemistryMagnetic Resonance ImagingEpidermisPentetic AcidAntineoplastic Agents, PhytogenicCell Proliferation