Central Nervous System NeoplasmsNervous System NeoplasmsPeripheral Nervous System NeoplasmsSeizuresLymphomaVasculitis, Central Nervous SystemLymphoma, AIDS-RelatedCentral Nervous SystemDigestive System NeoplasmsBrain NeoplasmsEye NeoplasmsLymphoma, B-CellImmunocompetenceCranial IrradiationLymphoma, Large B-Cell, DiffuseMethotrexateCentral Nervous System DiseasesLymphoma, Non-HodgkinBrainCombined Modality TherapySeizures, FebrileMagnetic Resonance ImagingRetrospective StudiesNervous SystemMeningeal NeoplasmsLymphoma, T-CellImmunohistochemistrySpinal Cord NeoplasmsAntimetabolites, AntineoplasticFatal OutcomeMeningiomaGene RearrangementAstrocytomaTreatment OutcomePrognosisHerpesvirus 4, HumanEpstein-Barr Virus InfectionsEpilepsyGerminal CenterCentral Nervous System InfectionsRadiotherapySurvival RateAnticonvulsantsAntineoplastic Combined Chemotherapy ProtocolsNeoplasm Recurrence, LocalPeripheral Nervous SystemElectroencephalographySurvival AnalysisGlioblastomaTumor Markers, BiologicalTime FactorsIncidenceNeuronsTomography, X-Ray ComputedCentral Nervous System Viral DiseasesDose-Response Relationship, DrugDisease-Free SurvivalPolymerase Chain ReactionEpilepsies, PartialAge FactorsPentylenetetrazoleAntineoplastic AgentsFollow-Up StudiesSpinal CordCentral Nervous System AgentsConvulsantsNeoplasmsPancreatic NeoplasmsCentral Nervous System Fungal InfectionsEnteric Nervous SystemEpilepsy, GeneralizedNervous System DiseasesBrain DiseasesNeurogliaAutonomic Nervous SystemNervous System Physiological PhenomenaBlood-Brain BarrierEpilepsy, Temporal LobeEpilepsy, Complex PartialNerve Tissue ProteinsCentral Nervous System Bacterial InfectionsDisease Models, AnimalMyelin SheathAstrocytesSympathetic Nervous SystemStatus EpilepticusNeoplasms, Cystic, Mucinous, and SerousHippocampus