Unruptured internal carotid artery aneurysm arising from the common trunk of posterior communicating artery and anterior choroidal artery: a case report and literature review

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  • 前脈絡叢動脈と後交通動脈の共通幹との分岐部に発生した未破裂内頚動脈瘤の1 例
  • 症例報告 前脈絡叢動脈と後交通動脈の共通幹との分岐部に発生した未破裂内頚動脈瘤の1例
  • ショウレイ ホウコク ゼン ミャクラクソウドウミャク ト アト コウツウ ドウミャク ノ キョウツウ カン ト ノ ブンキブ ニ ハッセイ シタ ミハレツ ナイ ケイ ドウミャクリュウ ノ 1レイ

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Objective: We report a rare case of internal carotid artery (ICA) aneurysm arising from the common trunk of the anterior choroidal artery (AChA) and posterior communicating artery (Pcom) that was successfully treated by coil embolization. Herein, we present a literature review of anatomical AChA variations.<br/>Case presentation: A 73-year-old woman presented with an unruptured left ICA aneurysm. The AChA directly arising from the Pcom was shown on cerebral angiogram. We performed coil embolization and successfully preserved the AChA.<br/>Conclusion: ICA aneurysm arising at the common trunk of the AChA and Pcom is rare. To avoid complication, precise preoperative assessment using 3D rotational angiography and the Allcock test is important.

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