AstrocytomaBrain NeoplasmsHypothalamic NeoplasmsOptic Nerve NeoplasmsCerebellar NeoplasmsInfratentorial NeoplasmsCranial Nerve NeoplasmsGenes, Neurofibromatosis 1Neurofibromatosis 1GliomaGlioblastomaNeurofibromin 1OligodendrogliomaImmunohistochemistryBrain Stem NeoplasmsEpendymomaThalamic DiseasesOptic ChiasmTumor Markers, BiologicalSupratentorial NeoplasmsCentral Nervous System NeoplasmsSpinal Cord NeoplasmsAntineoplastic ProtocolsAnaplasiaGangliogliomaHypothalamus, AnteriorCraniopharyngiomaCell Line, TumorProto-Oncogene Proteins B-rafMagnetic Resonance ImagingMeningiomaTumor Necrosis Factor-alphaTumor BurdenDNA, NeoplasmTumor Suppressor Protein p53Gene Expression Regulation, NeoplasticNimustineImmunoenzyme TechniquesNeoplasm GradingMeningeal NeoplasmsAstrocytesGenes, Tumor SuppressorTumor Suppressor ProteinsReverse Transcriptase Polymerase Chain ReactionCell Transformation, NeoplasticNeoplasm Recurrence, LocalNervous System NeoplasmsGlial Fibrillary Acidic ProteinComparative Genomic HybridizationGene DosageWilms TumorNeoplasms, ExperimentalTomography, X-Ray ComputedNeovascularization, PathologicKi-67 AntigenTuberous SclerosisNeoplasm ProteinsRNA, MessengerChromosomes, Human, Pair 10