AstrocytomaBrain NeoplasmsGlioblastomaGliomaOligodendrogliomaTumor Markers, BiologicalNeoplasm GradingSupratentorial NeoplasmsImmunohistochemistryCell Line, TumorTumor BurdenTumor Suppressor Protein p53PrognosisTumor Necrosis Factor-alphaSpinal Cord NeoplasmsEpendymomaGenes, Tumor SuppressorKi-67 AntigenMeningiomaNeoplasm StagingHypothalamic NeoplasmsNeoplasm ProteinsImmunoenzyme TechniquesTumor Suppressor ProteinsAdenocarcinomaDisease ProgressionDNA, NeoplasmGene Expression Regulation, NeoplasticBrain Stem NeoplasmsCentral Nervous System NeoplasmsRetrospective StudiesWilms TumorNeoplasm Recurrence, LocalTreatment OutcomeSurvival AnalysisBiopsyMeningeal NeoplasmsNeovascularization, PathologicNeoplasms, ExperimentalCerebellar NeoplasmsCell Transformation, Neoplastic