Subarachnoid Haemorrhage from a Large Cerebral Aneurysm Visible only on Repeat Angiography

摘要

We report the case of a 49-year-old woman with a massive subarachnoid haemorrhage in conjunction with trauma. The initial cerebral an-giogmphy was normal. Three weeks later she had a second subarachnoid haemorrhage. A repeat angiography demonstrated an eight mm aneurysm of the internal carotid artery bifurcation, a region clearly normal in the previous angiography.