The internal carotid artery is the most commonly affected artery in pseudoaneurysm presenting with epistaxis. Basilar arterial pseudoaneurysm is usually associated with intracranial haemorrhage. We report a basilar artery pseudoaneurysm after endoscopic surgery for clival chordoma, leading to epistaxis. The mechanism of epistaxis and strategy of embolisation are discussed.
Keywords: Embolization; basilar artery; endoscopy; pseudoaneurysm.