Abstract
Recent sporadic reports have described successful endovascular treatment of cerebral aneurysms associated with fenestration. We experienced an unruptured cerebral aneurysm case, with fenestration of the horizontal portion of the anterior cerebral artery that was successfully treated with coil embolization using an intracranial stent. An 80-year-old man presented with a chief complaint of gait disorder. Magnetic resonance imaging showed an incidental unruptured aneurysm. Three-dimensional digital subtraction angiography revealed a cerebral aneurysm associated with fenestration of the horizontal portion of the anterior cerebral artery. Endovascular surgery was performed at the patient's request. Conservation of the fenestrated vessels and perforators is important in the treatment of cerebral aneurysm associated with fenestration. Intracranial stents are reportedly useful for conserving not only parent vessels but also their perforators. In the present case, no postoperative perforator damage occurred. An endovascular approach is a potential treatment option with full evaluation of the relationship between the aneurysm and fenestrated vessels.
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