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Features Commonly Recognized in Association with Complex Aneurysms
| Giant (≥25 mm diameter) |
| Location of difficult or morbid access |
| Configuration |
| Broad neck |
| Branches arising from aneurysm itself |
| Parent artery part of the aneurysm itself |
| Wall structure (blister-like, dissecting) |
| Calcification of the aneurysmal wall |
| Intraluminal thrombus |
| Absence of collateral circulation |
| Embedding on surrounding brain, brainstem, cranial nerves |
| Previous treatments |
