The term saccular aneurysm is used to describe an aneurysm based on its angioarchitecture1. Saccular aneurysms are defined by a balloon-like dilation of an artery. Saccular aneurysms can be divided into three subgroups and account for approximately 95% of all intracerebral aneurysms2:
- No branching vessel
- Associated branching vessel
- Bifurcation aneurysm
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