A saccular-like dissecting aneurysm of the anterior cerebral artery that developed 2 years after an ischemic event

This is the first case report of A1 dissecting aneurysm presenting with an ischemic event in the literature. The sequential change of the configuration was curious to develop aneurysmal dilatation in 2 years. Long-term follow-up is necessary even after disappearance of the arterial dissection.