Broad Neck Basilar Top Aneurysm: Understanding the Neck
A 64-year-old male presented with subarachnoid hemorrhage (Fischer grade III). He was well preserved (Hunt and Hess II). DSA revealed a broad neck basilar top aneurysm pointing superiorly (Fig. 40.1a). An anteriorly projecting lobule seen in the lateral view was the probable site of rupture (Fig. 40.1b).