Intracranial artery fenestration is segmental duplication of the lumen into 2 distinct channels and is known to have a low angiographical incidence of 0.3 to 0.9%. Intracranial artery fenestration is frequently associated with aneurysms, and aneurysms arising at the site of fenestrated middle cerebral artery (MCA) is extremely rare. To our best knowledge, there are only 10 such patients have been reported. Herein, the authors describe the 11th case of aneurysm arising from the fenestrated MCA. As the characteristics of fenestrated MCA aneurysms has not been well determined until now, these interesting patients are investigated and summarized.
*Department of Emergency, Shouguang People's Hospital of Shandong Province, Weifang City
†Department of Neurosurgery, Yidu Central Hospital of Weifang, Qingzhou
‡Department of Neurosurgery, The fifth People's Hospital of Ji’nan, Jinan City, China.
Address correspondence and reprint requests to Lin Wei, MD, Department of Neurosurgery, The fifth People's Hospital of Ji’nan, No. 24297, Jingshi Road, Huaiyin District, Jinan City, Shangdong Province 250022, China; E-mail: Linwei001@163.com
Received 3 December, 2018
Accepted 21 December, 2018
Xiying Xue and Yunlong Li contributed equally to this study.
The authors report no conflicts of interest.
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