Fujimura M, Seki H, Sugawara T, Tomichi N, Oku T, Higuchi H
Department of Neurosurgery, Iwate Prefectural Central Hospital, Morioka.
Neurol Med Chir (Tokyo). 1996 Apr;36(4):229-33. doi: 10.2176/nmc.36.229.
A 69-year-old female presented with a ruptured aneurysm at the distal tip of a fenestrated anomalous artery which originated in the ophthalmic segment of the internal carotid artery (ICA), passed between the optic nerves, ascended along the midline, and formed the fenestration before dividing into the bilateral pericallosal arteries. The anomalous artery manifested as subarachnoid hemorrhage. Four days later, she died from severe pulmonary edema. The angiographic finding was confirmed by postmortem examination. Numerous perforating vessels from the anomalous artery and the distal ICA supplied the optic nerves and chiasm. This finding supports the idea that this anomalous vessel may be an extreme developmental variation of the prechiasmal arterial plexus.
一名69岁女性，其起源于颈内动脉（ICA）眼段的开窗异常动脉远端尖端动脉瘤破裂。该异常动脉在视神经之间穿过，沿中线上升，在分成双侧胼周动脉之前形成开窗。该异常动脉表现为蛛网膜下腔出血。四天后，她死于严重肺水肿。血管造影结果经尸检证实。来自异常动脉和ICA远端的众多穿支血管供应视神经和视交叉。这一发现支持了这种异常血管可能是视交叉前动脉丛的一种极端发育变异的观点。
