Anterior cerebral artery aneurysm related horizontal portion fenestration and accessory middle cerebral artery: case report

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  • 前大脳動脈A1 部窓形成及び副中大脳動脈に関連した破裂脳動脈瘤に対してコイル塞栓術を施行した1 例
  • 症例報告 前大脳動脈A1部窓形成及び副中大脳動脈に関連した破裂脳動脈瘤に対してコイル塞栓術を施行した1例
  • ショウレイ ホウコク ゼン ダイノウ ドウミャク A1ブ マド ケイセイ オヨビ フク チュウ ダイノウ ドウミャク ニ カンレン シタ ハレツ ノウ ドウミャクリュウ ニ タイシテ コイル ソクセンジュツ オ シコウ シタ 1レイ

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Objective: We present a very rare case of a ruptured aneurysm at the horizontal portion (A1) of the anterior cerebral artery (ACA) arising from A1 fenestration and accessory middle cerebral artery (MCA).<br>Case presentation: A 43-year-old man suffered severe headache and was admitted to our hospital. CT revealed subarachnoid hemorrhage. 3D-DSA revealed a tiny aneurysm located at the A1 of the ACA arising from A1 fenestration and accessory MCA. Coil embolization of the aneurysm was performed because we thought that it was difficult to identify aneurysmal neck during clipping surgery.<br>Conclusion: A1 aneurysm arising from A1 fenestration and accessory MCA is very rare. Considering the location of the aneurysm and the complexity of parent arteries, coil embolization may be a better treatment choice than clipping.

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