Cranial Fossa, MiddleCranial Fossa, AnteriorCranial Fossa, PosteriorDura MaterSkull BaseCentral Nervous System Vascular MalformationsArachnoid CystsOtologic Surgical ProceduresCranial Nerve NeoplasmsTrigeminal Nerve DiseasesCraniotomySkull Base NeoplasmsTemporal BoneCerebral VeinsFacial Nerve DiseasesEthmoid BoneArnold-Chiari MalformationCerebellopontine AngleEar DiseasesOsteomaArteriovenous FistulaSphenoid BoneEthmoid SinusTomography, X-Ray ComputedPetrous BoneMastoidArachnoidCavernous SinusSubdural EffusionInfratentorial NeoplasmsHematoma, Subdural, IntracranialNeurilemmomaMucoceleOccipital BoneHematoma, SubduralZygomaMagnetic Resonance ImagingMeningeal NeoplasmsChondromatosis, SynovialSkull NeoplasmsFrontal SinusNeurosurgical ProceduresHematoma, Epidural, CranialParanasal Sinus NeoplasmsFacial ParalysisPterygopalatine FossaCerebral AngiographySphenoid SinusSkullOrbital DiseasesEar, MiddleSinus Thrombosis, IntracranialOrbital NeoplasmsMeningeal ArteriesEmbolization, TherapeuticImaging, Three-DimensionalIntracranial Arteriovenous MalformationsHeadacheDandy-Walker SyndromeCerebellar NeoplasmsMyelographyMeningiomaMeningoceleIntracranial HypotensionTreatment OutcomeSpinal PuncturePolyvinylsTrigeminal NerveCerebellar DiseasesSyringomyeliaLaminectomyPneumocephalusEncephalocele