Sphenoid sinus mucocele.
D001766:Blindness / Q000209:etiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009078:Mucocele / Q000000981:diagnostic imaging; D009461:Neurologic Manifestations; D009668:Nose Diseases / Q000209:etiology*; D011859:Radiography; D013101:Sphenoid Sinus