Otani Naoki, Nawashiro Hiroshi, Tsuzuki Nobusuke, Osada Hideo, Suzuki Takamoto, Shima Katsuji, Nakai Kanji
Department of Neurosurgery, National Defense Medical College, Saitama, Japan.
Surg Neurol Int. 2010 Sep 16;1:51. doi: 10.4103/2152-7806.69378.
Intracranial vascular anomalies involving the middle cerebral artery (MCA) are relatively rare, as such knowledge will be helpful for planning the optimal surgical procedures.
We herein present the first case of a ruptured internal carotid artery aneurysm arising at the origin of the hypoplastic duplicated MCA associated with accessory MCA and main MCA aplasia, which was revealed by angiograms and intraoperative findings.
In practice, this case highlights the urgent need to preoperatively recognize such vascular anomalies as well as understand the collateral blood supply in cerebral ischemia associated with these MCA anomalies.
累及大脑中动脉（MCA）的颅内血管异常相对少见，了解这些知识将有助于规划最佳手术方案。
我们在此报告首例起源于发育不全的重复MCA起始部的破裂颈内动脉瘤，该重复MCA伴有副MCA且主MCA发育不全，血管造影和术中发现证实了这一点。
在实际操作中，该病例凸显了术前识别此类血管异常以及了解与这些MCA异常相关的脑缺血时侧支血供情况的迫切需求。
