Sphenoid BoneSphenoid SinusitisParanasal Sinus DiseasesParanasal Sinus NeoplasmsCerebrospinal Fluid RhinorrheaPneumoencephalographySkull BaseSella TurcicaCranial Fossa, MiddleSkull NeoplasmsSkull Base NeoplasmsOtorhinolaryngologic Surgical ProceduresEthmoid SinusMeningiomaEndoscopyTomography, X-Ray ComputedMeningoceleEnophthalmosCavernous SinusEncephaloceleRadiography, DentalEthmoid BoneFibrous Dysplasia of BoneMagnetic Resonance ImagingFrontal SinusPituitary NeoplasmsNeuronavigationAbducens Nerve DiseasesOsteomaOphthalmoplegiaOrbitTemporal MuscleParanasal SinusesMaxillary SinusMeningeal NeoplasmsOrbital DiseasesNeurofibromatosis 1NeuroaspergillosisCavernous Sinus ThrombosisSkullFrontal BoneHeadacheVasculitis, Central Nervous SystemArachnoidNasal ObstructionCraniofacial AbnormalitiesEpistaxisBrain AbscessPituitary ApoplexyCraniotomyNeurosurgical ProceduresParietal BoneAspergillosisNasal CavityHistiocytoma, Malignant FibrousSphenoid SinusPolypsFacial BonesDura MaterAirFatal OutcomeNasopharyngeal NeoplasmsForeign BodiesSinusitisCone-Beam Computed TomographyAdenomaNeurologic ExaminationOptic NerveCerebral Angiography