title: Acute sphenoid sinusitis causing spasm of the internal carotid artery.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000792:Angiography; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging; D002426:Cavernous Sinus; D005132:Eye Manifestations; D005260:Female; D006261:Headache / Q000209:etiology; D006801:Humans; D002542:Intracranial Embolism and Thrombosis / Q000209:etiology; D012852:Sinusitis / Q000150:complications*; D013035:Spasm / Q000000981:diagnostic imaging / Q000209:etiology*; D013101:Sphenoid Sinus; D013203:Staphylococcal Infections / Q000150:complications*; D013927:Thrombosis / Q000209:etiology