Which of these can cause 3 rd nerve paralysis -a) Posterior communicating artery (PCA) aneurysmb) Tolosa - Hunt syndromec) Midbrain infarctd) Pons Infarcte) Lateral medullary lesion

Causes of occulornotor nerve paralysis Infarct, haemorrhage, demyelination, infection, tumor. Aneurysm ofposterior communicating artery & basilar artery. Aneurysm, infarct, compression, tumor, meningitis. Internal carotid artery aneurysm, carotid-cavernous fistula, cavernous sinus thrombosis, tumors (pituitary adenoma, meningioma, metastasis), herpes zoster, Tolosa-hunt syndrome. Infarction of nerve e.g. diabetes, giant cell arteritis.