Sphenoid BoneThighSphenoid SinusitisSphenoid SinusSkull NeoplasmsCranial Fossa, MiddleBone and BonesBone RemodelingTomography, X-Ray ComputedBone DensityParanasal Sinus DiseasesMagnetic Resonance ImagingParanasal Sinus NeoplasmsBone ResorptionCerebrospinal Fluid RhinorrheaBone MarrowPneumoencephalographyBone NeoplasmsBone DevelopmentBone Marrow CellsBone Diseases