Petrosal Sinus SamplingCranial SinusesCavernous SinusPituitary ACTH HypersecretionCushing SyndromeACTH Syndrome, EctopicCarotid-Cavernous Sinus FistulaPetrous BoneCentral Nervous System Vascular MalformationsACTH-Secreting Pituitary AdenomaAdrenocorticotropic HormoneAccessory NerveCorticotropin-Releasing HormoneJugular VeinsEmbolization, TherapeuticPituitary NeoplasmsOccipital BoneCerebral AngiographyCerebral VeinsAntidiuretic AgentsHydrocortisoneTomography, X-Ray ComputedMaxillary SinusVena Cava, InferiorParanasal SinusesSinus of ValsalvaDura MaterInferior ColliculiCarotid SinusArteriovenous FistulaFrontal SinusParanasal Sinus DiseasesSphenoid SinusCoronary SinusSinus Thrombosis, IntracranialMagnetic Resonance ImagingSick Sinus SyndromeEthmoid SinusAdenoma