AstrocytomaPrognosisBrain NeoplasmsHypothalamic NeoplasmsGlioblastomaGliomaOptic Nerve NeoplasmsSupratentorial NeoplasmsOligodendrogliomaSpinal Cord NeoplasmsTumor Markers, BiologicalAstrocytesCerebellar NeoplasmsSurvival AnalysisTumor Cells, CulturedAnaplasiaImmunohistochemistryCentral Nervous System NeoplasmsEpendymomaSurvival RateBrain Stem NeoplasmsNimustineRetrospective StudiesCell Line, TumorNeoplasm GradingNeoplasm Recurrence, LocalMagnetic Resonance ImagingGlial Fibrillary Acidic ProteinGene Expression Regulation, NeoplasticTreatment OutcomeNeoplasm StagingGenes, ModifierFollow-Up StudiesDacarbazineMeningeal NeoplasmsDisease ProgressionGangliogliomaNeoplasm InvasivenessOptic ChiasmKaplan-Meier EstimateMeningiomaNervous System NeoplasmsCombined Modality TherapyAntineoplastic Agents, AlkylatingThalamic DiseasesChromosomes, Human, Pair 10Time FactorsDisease-Free SurvivalHypothalamus, AnteriorNeurosurgical ProceduresTomography, X-Ray ComputedMedulloblastoma