HistiocytesSea-Blue Histiocyte SyndromeLymphocytesHistiocytosisCell ProliferationHistiocytosis, Non-Langerhans-CellHistiocytosis, SinusHistiocytic SarcomaHistiocytosis, Langerhans-CellHistiocytic Disorders, MalignantLymphocyte ActivationErdheim-Chester DiseaseLymphatic DiseasesLymph NodesT-LymphocytesGranuloma, Plasma CellImmunohistochemistryCells, CulturedHistiocytoma, Benign FibrousGranulomaPanniculitisLymphohistiocytosis, HemophagocyticEpithelioid CellsLymphadenitisXanthomatosisMalacoplakiaImmunoenzyme TechniquesB-LymphocytesMycobacterium scrofulaceumBiopsyCell DivisionSignal TransductionHistiocytic Necrotizing LymphadenitisApoptosisMice, Inbred C57BLLymphomaCell DifferentiationSpleenMacrophagesLymphocyte SubsetsHodgkin DiseaseHistocytochemistryCell Line, TumorAntigens, CDCell MovementSkinAntibodies, MonoclonalFlow CytometryLymphocyte CountCell CycleRNA, MessengerLymphoid TissueMononuclear Phagocyte SystemCell LineSkin DiseasesBone MarrowMice, Inbred BALB CMice, KnockoutStaining and LabelingSplenomegalyRheumatoid NoduleCell SurvivalFatal Outcome