AstrocytomaCerebellumBrain NeoplasmsHypothalamic NeoplasmsGlioblastomaPurkinje CellsGliomaOptic Nerve NeoplasmsBrainSupratentorial NeoplasmsCerebellar NeoplasmsCerebellar CortexOligodendrogliomaCerebellar DiseasesSpinal Cord NeoplasmsMagnetic Resonance ImagingAstrocytesGlial Fibrillary Acidic ProteinCerebellar NucleiAnaplasiaEpendymomaTumor Cells, CulturedCentral Nervous System NeoplasmsNimustineBrain Stem NeoplasmsMedulloblastomaImmunohistochemistryNeuronsGenes, ModifierNerve Tissue ProteinsMice, Neurologic MutantsCerebellar AtaxiaMeningeal NeoplasmsOptic ChiasmGangliogliomaDacarbazineThalamic DiseasesConditioning, EyelidMeningiomaBrain ChemistryRNA, MessengerHedgehogsCerebral CortexNervous System NeoplasmsHypothalamus, AnteriorChromosomes, Human, Pair 10Neoplasm GradingAntineoplastic Agents, Alkylating