Hematoma, Subdural, ChronicHematoma, SubduralTrephiningSubdural SpaceHematoma, Subdural, AcuteSubdural EffusionCraniotomyHematoma, Subdural, IntracranialEmpyema, SubduralHematoma, Epidural, CranialHematomaDura MaterHematoma, Subdural, SpinalAspirinTomography, X-Ray ComputedDrainageCraniocerebral TraumaHead Injuries, ClosedArachnoidArachnoid CystsNeurosurgical ProceduresThird VentricleHeadacheVentriculostomyChronic DiseaseRemission, SpontaneousMagnetic Resonance ImagingIntracranial HypotensionCranial Fossa, PosteriorRecurrencePostoperative ComplicationsBattered Child SyndromeTreatment OutcomeHematoma, Epidural, SpinalShaken Baby SyndromeGlasgow Coma ScaleSkull