HistiocytesLangerhans CellsSea-Blue Histiocyte SyndromeHistiocytosis, Langerhans-CellHistiocytosisIslets of LangerhansCell ProliferationHistiocytosis, SinusHistiocytosis, Non-Langerhans-CellHistiocytic SarcomaHistiocytic Disorders, MalignantErdheim-Chester DiseaseLymphatic DiseasesLymph NodesSkinHistiocytoma, Benign FibrousGranuloma, Plasma CellImmunohistochemistryEpidermisCells, CulturedGranulomaPanniculitisLymphadenitisEpithelioid CellsLymphohistiocytosis, HemophagocyticMalacoplakiaImmunoenzyme TechniquesXanthomatosisCell DifferentiationMycobacterium scrofulaceumMannose-Binding LectinsBiopsyLangerhans Cell SarcomaHistiocytic Necrotizing LymphadenitisCell MovementSignal TransductionAntigens, CDT-LymphocytesCell DivisionHistocytochemistryApoptosisSkin DiseasesDermatitis, ContactLymphomaHodgkin DiseaseMice, Inbred C57BLAntigens, CD1Cell Line, TumorLymphocyte ActivationIslets of Langerhans TransplantationMice, Inbred BALB CRNA, MessengerAntibodies, MonoclonalStaining and LabelingMicroscopy, ElectronCell CycleMononuclear Phagocyte SystemDendritic CellsLymphocytesMacrophagesCell CountRheumatoid NoduleFatal OutcomeLymphoid Tissue