Sakamoto S, Inagawa T, Ikawa F, Kawamoto H, Ohbayashi N, Sakoda E, Hidaka T
Department of Neurosurgery, Mazda Hospital, 2-15 Aosaki-minami, Fuchu-cho, Hiroshima 735-8585, Japan.
No Shinkei Geka. 2001 Nov;29(11):1093-8.
We present a rare case of a dissecting aneurysm of the left anterior cerebral artery (ACA) with persistent pearl & string sign on cerebral angiograms over a period of 8 years. A 43-year-old woman with disturbance of consciousness and right sided hemiparesis was conservatively treated. Computed tomographic (CT) scan revealed a low-density area in the left frontal lobe. Initial angiography, which was performed at 6 months after the onset, showed a pearl & string sign at the A2 portion of the left ACA. After 8 years, repeat angiography again showed persistent pearl & string sign at the same portion of the left ACA. We discussed the changes in findings usually obtained in cerebral angiography concerning dissecting aneurysms in ACA.
我们报告一例罕见的左大脑前动脉（ACA）夹层动脉瘤病例，其脑血管造影显示珍珠串征持续8年。一名43岁意识障碍和右侧偏瘫的女性接受了保守治疗。计算机断层扫描（CT）显示左额叶有低密度区。发病6个月后进行的初次血管造影显示左ACA的A2段有珍珠串征。8年后，再次血管造影显示左ACA同一部位仍有持续的珍珠串征。我们讨论了ACA夹层动脉瘤脑血管造影通常所见的变化。
