Plasma CellsLeukemia, Plasma CellNeoplasms, Plasma CellImmunohistochemistryPlasmaMultiple MyelomaParaproteinemiasGranuloma, Plasma CellPlasmacytomaImmunoenzyme TechniquesB-LymphocytesSyndecan-1Tumor Markers, BiologicalBone MarrowCell DifferentiationImmunoglobulin GGerminal CenterMonoclonal Gammopathy of Undetermined SignificanceImmunoglobulinsCell MembraneImmunoglobulin AAntibodies, MonoclonalRNA, MessengerHistocytochemistryPalatine TonsilAmyloidosisTime FactorsB-Lymphocyte SubsetsImmunoglobulin MPrognosisFlow CytometryBiopsyAntigens, CDPlasma Cell Granuloma, PulmonaryBiological MarkersKi-67 AntigenSyndecansReverse Transcriptase Polymerase Chain ReactionPlasma GasesLymph NodesImmunophenotypingMice, Inbred C57BLImmunoglobulin Light ChainsImmunoglobulin lambda-ChainsBone Marrow CellsCells, CulturedAntigens, CD20Dog DiseasesFluorescent Antibody TechniqueSpleenBlotting, WesternLiverMicroscopy, ElectronNeoplasm ProteinsMolecular Sequence DataStaining and LabelingMembrane GlycoproteinsImmunoglobulin kappa-ChainsBence Jones ProteinAntigens, CD19DogsAntigens, CD38Plasma VolumeKidneyHypergammaglobulinemiaDisease Models, AnimalAntibodiesCell CountGene ExpressionMembrane ProteinsRats, Sprague-DawleyMice, Inbred BALB CB-Cell-Specific Activator ProteinLymphoid TissueImmunoglobulin Heavy ChainsGene Expression Regulation, NeoplasticTissue DistributionCell Line, TumorEnzyme-Linked Immunosorbent AssayKeratin-7LymphocytesKeratinsADP-ribosyl CyclaseMice, KnockoutAdenocarcinomaImmunoglobulin J-ChainsAntigens, NeoplasmReceptors, Antigen, B-CellRabbitsParaffin EmbeddingRats, WistarInterleukin-6Tissue Array AnalysisAntibody FormationCell ProliferationFatal OutcomeCell LineApoptosisMyeloma ProteinsPlasma Exchange