Stoodley M A, Macdonald R L, Weir B K
Section of Neurosurgery, University of Chicago Medical Center, IL 60637, USA.
Neurosurg Clin N Am. 1998 Oct;9(4):823-34.
Middle cerebral artery (MCA) aneurysms account for approximately 20% of aneurysmal subarachnoid hemorrhage (SAH). An understanding of MCA anatomy and variations is the key to successful treatment of MCA aneurysms, which may occur on the M1 segment, at the division of the main trunk or on distal branches. Patients may present with SAH, mass effect, epilepsy, or ischemia. MCA aneurysms associated with large temporal hematomas may be approached through the superior temporal gyrus. Other aneurysms are best approached with a medial or lateral transSylvian approach.
大脑中动脉（MCA）动脉瘤约占动脉瘤性蛛网膜下腔出血（SAH）的20%。了解MCA的解剖结构和变异是成功治疗MCA动脉瘤的关键，MCA动脉瘤可能发生在M1段、主干分叉处或远端分支。患者可能表现为SAH、占位效应、癫痫或缺血。与巨大颞叶血肿相关的MCA动脉瘤可通过颞上回入路。其他动脉瘤最好采用经侧裂内侧或外侧入路。
