Nakata H, Iwata Y
No Shinkei Geka. 1987 Jan;15(1):57-62.
A case of agenesis of left internal carotid artery is reported. The patient is a forty one-year-old house-wife with sudden episode of headache when she had a fever. CT scan of the head showed a small high density area in the right frontotemporal subcortical region. Four vessel cerebral angiography demonstrated negative lesion except for complete absence of the left internal carotid artery. The blood supply to the left cerebral hemisphere was provided both through the tortuous anterior communicating artery and through the enlarged left posterior communicating artery. Left ophthalmic artery arose from the left posterior communicating artery. The embryological developmental process of this kind of vascular anomaly as well as the relationship between intravascular hemodynamic stress and the induction of cerebral aneurysm were discussed in detail.
报告一例左侧颈内动脉缺如病例。患者为41岁家庭主妇，发热时突发头痛。头部CT扫描显示右侧额颞叶皮质下区域有一小的高密度区。四血管脑血管造影显示除左侧颈内动脉完全缺如外无其他病变。左侧大脑半球的血液供应通过迂曲的前交通动脉以及增粗的左侧后交通动脉提供。左侧眼动脉起源于左侧后交通动脉。详细讨论了这种血管异常的胚胎发育过程以及血管内血流动力学应力与脑动脉瘤形成的关系。
