AstrocytomaBrain NeoplasmsHypothalamic NeoplasmsGlioblastomaOptic Nerve NeoplasmsGliomaSupratentorial NeoplasmsOligodendrogliomaSpinal Cord NeoplasmsAstrocytesAnaplasiaCerebellar NeoplasmsTumor Cells, CulturedEpendymomaCentral Nervous System NeoplasmsBrain Stem NeoplasmsNimustineMagnetic Resonance ImagingSymptom AssessmentDepressionGlial Fibrillary Acidic ProteinGenes, ModifierTreatment OutcomeMeningeal NeoplasmsOptic ChiasmGangliogliomaDacarbazineMeningiomaQuestionnairesThalamic DiseasesNervous System NeoplasmsSeverity of Illness IndexHypothalamus, AnteriorTime FactorsChromosomes, Human, Pair 10Neoplasm GradingAntineoplastic Agents, AlkylatingBehavioral SymptomsBrain