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Basilar Artery • Anterior inferior cerebellar artery • Superior cerebellar artery • Posterior cerebral artery – Posterior choroidal arteries • Blood supply to the thalamus, midbrain, pons, medulla, cerebellum Vertebral Artery • • • • Dural entry Anterior spinal artery Ant/post meningeal arteries Posterior inferior cerebellar artery – – – – – Anterior medullary segment Lateral medullary segment Tonsillomedullary Telovelotonsillar Cortical Venous Anatomy • Superficial vs deep veins • Sinuses • Symptoms with venous congestion Clinical Cases Subarachnoid Hemorrhage • 71 year old man • Headache, no deficit • Interpeduncular blood Cause of Subarachnoid Hemorrhage? Pre-nidal Aneurysm Selective Posterior Cerebral Arteries Post- treatment Risk of Bleed Eliminated? • Incomplete L IIIrd n palsy • No other deficits • Treatment of AVM
