III nerve palsy with pupillary sparing is seen in -: (A) Craniopharyngioma, (B) Hypotension, (C) Aneurysm of post, communicating aery, (D) DM
Answer is D. Pupil-sparing oculomotor nerve palsy is often assumed to be caused by ischemic injury such as hypeension and diabetes mellitus. Sometimes compressive lesion can cause pupil-sparing oculomotor nerve palsy with a sho interval from the onset of symptoms to diagnosis.