A ruptured aneurysm of the distal anterior inferior cerebellar artery treated by endosaccular coil embolization: case report

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  • KONDO Rei
    Department of Neurosurgery, Yamagata City Hospital SAISEIKAN
  • SATO Shinji
    Department of Neurosurgery, Yamagata City Hospital SAISEIKAN
  • ITO Miiko
    Department of Neurosurgery, Yamagata City Hospital SAISEIKAN
  • ITAGAKI Hiroshi
    Department of Neurosurgery, Yamagata City Hospital SAISEIKAN
  • NAGAHATA Morio
    Department of Neurosurgery, Yamagata City Hospital SAISEIKAN
  • SAITO Shinjiro
    Department of Neurosurgery, Yamagata City Hospital SAISEIKAN
  • KAYAMA Takamasa
    Department of Neurosurgery, Faculty of Medicine, Yamagata University National Cancer Center

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Other Title
  • 瘤内塞栓術を施行したｄｉｓｔａｌ　ＡＩＣＡ破裂動脈瘤の一例：症例報告
  • 瘤内塞栓術を施行したdistal AICA破裂動脈瘤の1例--症例報告
  • リュウナイ ソクセンジュツ オ シコウ シタ distal AICA ハレツ ドウミャクリュウ ノ 1レイ ショウレイ ホウコク

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Abstract

Objective: We report the case of a ruptured aneurysm of the distal anterior inferior cerebellar artery (AICA) treated by endosaccular embolization.<br>Case presentation: An 86-year-old woman presented with subarachnoid hemorrhage (SAH). Computed tomography showed Fisher group 3 SAH. Although the origin of the hemorrhage seemed to be in the posterior circulation based on the CT findings, initial digital-subtraction angiography failed to show an aneurysm in the posterior circulation. Two weeks after the onset of SAH, 3D-CT angiography revealed an aneurysm distal to the meatal loop of the left AICA, to which endosaccular embolization using detachable coils was performed. The postoperative course was uneventful.<br>Conclusion: To our knowledge, this is the first case report of an AICA aneurysm distal to the meatal loop that was successfully treated by endosaccular embolization.

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