AstrocytomaPrognosisBrain NeoplasmsHypothalamic NeoplasmsGlioblastomaGliomaOptic Nerve NeoplasmsSupratentorial NeoplasmsOligodendrogliomaSpinal Cord NeoplasmsTumor Markers, BiologicalImmunohistochemistryTumor Cells, CulturedAstrocytesSurvival AnalysisCerebellar NeoplasmsMagnetic Resonance ImagingSurvival RateAnaplasiaEpendymomaCentral Nervous System NeoplasmsBrain Stem NeoplasmsCell Line, TumorRetrospective StudiesGene Expression Regulation, NeoplasticNimustineTreatment OutcomeNeoplasm StagingNeoplasm GradingNeoplasm Recurrence, LocalDisease ProgressionFollow-Up StudiesGlial Fibrillary Acidic ProteinTime FactorsGenes, ModifierNeoplasm InvasivenessMeningeal NeoplasmsDacarbazineKaplan-Meier EstimateGangliogliomaOptic ChiasmRNA, MessengerBrainMeningiomaCombined Modality TherapyReverse Transcriptase Polymerase Chain ReactionDisease-Free SurvivalAntineoplastic Agents, AlkylatingNervous System NeoplasmsTomography, X-Ray ComputedChromosomes, Human, Pair 10MutationThalamic DiseasesImmunoenzyme TechniquesHypothalamus, AnteriorNeurosurgical ProceduresMedulloblastomaBlotting, WesternBreast NeoplasmsProportional Hazards ModelsNeoplasm ProteinsRisk FactorsKi-67 Antigen