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Journal of Korean Neurosurgical Society > Volume 48(5); 2010 > Article
Journal of Korean Neurosurgical Society 2010;48(5): 434-437.
doi: https://doi.org/10.3340/jkns.2010.48.5.434
Cerebral Aneurysm in the Long Fenestration at the Middle Portion of M1 Segment.
Ki Bum Sim, Chang Sub Lee, Jung Cheol Park, Ji Soon Huh
Department of Neurosurgery, Jeju National University College of Medicine, Jeju, Korea. nsdrhuh@jejunu.ac.kr
We report a unique case of bilateral mirror image M1 aneurysms, one of which was an unruptured aneurysm arising from the proximal end of right middle cerebral artery fenestration with long loop and the other ruptured aneurysm from the contralateral side. We clipped ruptured aneurysm first and unruptured one in three months after the first operation. The difficulties of identifying this unusual vascular anomaly and possible problems during the surgery of an aneurysm at the site of fenestration are discussed with a review of the literature.
Key Words: Cerebral aneurysm; Fenestration; Middle cerebral artery
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