HypergammaglobulinemiaMurine Acquired Immunodeficiency SyndromeSplenomegalyLymphatic DiseasesAleutian Mink DiseaseGiant Lymph Node HyperplasiaLupus VulgarisHepatomegalyB-LymphocytesHepatitis, AutoimmuneAutoimmune DiseasesAleutian Mink Disease VirusImmunoglobulin GCoombs Testgamma-GlobulinsAntibodies, AntinuclearLymphoproliferative DisordersAutoantibodiesPlasma CellsPrednisoloneImmunoglobulinsLeishmaniasis, VisceralSjogren's SyndromeLymphocyte ActivationLupus Erythematosus, SystemicSpleenImmunoglobulin MT-LymphocytesMice, Inbred C57BLKidneyMice, Knockout