Supratentorial NeoplasmsAstrocytomaBrain NeoplasmsEpendymomaCraniotomyNeuroectodermal Tumors, PrimitiveGliomaCerebellar DiseasesCerebellar NeoplasmsInfratentorial NeoplasmsBrain Stem NeoplasmsGlioblastomaGlioma, SubependymalMagnetic Resonance ImagingHypothalamic NeoplasmsCerebral HemorrhageNeurosurgical ProceduresGangliogliomaCranial Fossa, PosteriorSpinal Cord NeoplasmsOligodendrogliomaMedulloblastomaTomography, X-Ray ComputedMeningeal NeoplasmsOptic Nerve NeoplasmsNimustineCerebral Ventricle NeoplasmsHematoma, Epidural, CranialCentral Nervous System NeoplasmsNeuroectodermal TumorsHematomaIntracranial PressurePancreatic NeoplasmsCerebral VentriclesNeoplasmsMeningiomaArachnoidBrainPrognosisThalamic DiseasesMuscle HypertoniaBrain AbscessSubarachnoid SpaceCerebellumNeuroendoscopyRetrospective Studies