Nucocele of the sphenoidal sinus.
D005005:Ethmoid Sinus / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D009078:Mucocele / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D009886:Ophthalmoplegia / Q000209:etiology; D011859:Radiography; D013101:Sphenoid Sinus / Q000000981:diagnostic imaging / Q000601:surgery