The most common site of Berry aneurysm is:: (A) Junction of anterior communication aery with anterior cerebral aery, (B) Junction of posterior communicating aery with internal carotid aery, (C) Bifurcation of middle cerebral aery, (D) Veebral aery
Answer is A. Occurence of Berry aneurysm in order of frequency Anterior communicating aery anterior cerebral junction (29%) Posterior communicating aery internal carotid junction (28%) Middle cerebral bifurcation (18%) Intracranial carotid bifurcation (8%) Veebrobasilar or basilar bifurcation (3%)