Nakamura H, Takada A, Hide T, Ushio Y
Department of Neurosurgery, Kumamoto Regional Medical Center, Japan.
Neurol Med Chir (Tokyo). 1994 Aug;34(8):555-7. doi: 10.2176/nmc.34.555.
A 36-year-old female suddenly developed a severe headache. Computed tomography demonstrated subarachnoid hemorrhage in the left Sylvian fissure. Left carotid angiography revealed a fenestration at the distal portion of the M1 portion of the left middle cerebral artery, and an aneurysm arising from the proximal end of the fenestration. These findings were confirmed when the aneurysm neck was clipped. The embryonic origin of this lesion indicates that congenital factors may result in aneurysm formation.
一名36岁女性突然出现严重头痛。计算机断层扫描显示左侧外侧裂蛛网膜下腔出血。左侧颈动脉血管造影显示左侧大脑中动脉M1段远端有一窗状结构，且在该窗状结构近端有一动脉瘤形成。在夹闭动脉瘤颈部时证实了这些发现。该病变的胚胎起源表明先天性因素可能导致动脉瘤形成。
