SplenomegalyDiagnostic ErrorsHepatomegalySplenectomyPreimplantation DiagnosisMagicTomography, X-Ray ComputedHyperostosis, Cortical, CongenitalPrimary MyelofibrosisAmyloidosis, FamilialConsciousness DisordersSerotonin SyndromeRetrospective StudiesSpleenPersistent Vegetative StateUnnecessary ProceduresSplenic NeoplasmsEpilepsyDelayed DiagnosisFalse Positive ReactionsHypersplenismFalse Negative ReactionsMicroscopyFatal OutcomeHistiocytic Necrotizing LymphadenitisBipolar DisorderMagnetic Resonance ImagingSensitivity and SpecificityForeign BodiesLipomaLymphatic DiseasesBiopsyClinical Laboratory TechniquesTreatment OutcomeSplenic DiseasesMurine Acquired Immunodeficiency SyndromePolymerase Chain ReactionTime FactorsReferral and ConsultationAcute DiseaseInfant, NewbornPrenatal DiagnosisPredictive Value of TestsSeizuresThrombocytopeniaRecurrenceMyeloproliferative DisordersTropical MedicinePregnancyBone MarrowAnticonvulsantsSkin Diseases, EczematousPrognosisReproducibility of ResultsLeukemia, ProlymphocyticHypertension, PortalEmergency Service, HospitalUltrasonographyLeukemia, ExperimentalAnemiaFollow-Up StudiesFriend murine leukemia virusHematopoiesis, ExtramedullaryHealth Care CostsPrevalenceLeukocytosisAutoimmune Lymphoproliferative SyndromeImmunohistochemistryProspective StudiesSplenic VeinLymphoproliferative DisordersElectroencephalographyLymphocytosisLeukemia, Hairy CellHistiocytic SarcomaPolycythemia VeraLymphohistiocytosis, HemophagocyticAge FactorsProguanilThrombocytosisPancytopeniaMice, Inbred C57BLIn Situ Hybridization, FluorescenceAnemia, HemolyticJanus Kinase 2Organ SizeSeverity of Illness IndexGraft vs Host ReactionGammaherpesvirinaeGaucher DiseaseReticulinHypergammaglobulinemiaRisk FactorsTherapies, InvestigationalLeishmaniasis, VisceralLeukemia, Neutrophilic, ChronicIncidenceGreat BritainDNA Mutational AnalysisMutation