A patient has an invasive tumor in the cavernous sinus, presenting signs in the patient include all except: (A) A dilated pupil, (B) A drooping eyelid, (C) A weakness in screwing the eyes up tightly, (D) A deviated eye looking down and laterally
Answer is C. Tight closing of eyes is a function of orbicularis oculi, which is supplied by facial nerve. This nerve doesn’t enter the cavernous sinus.