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Ⅰ.はじめに
脳動脈瘤が完全に血栓化し,自然治癒(spontaneouscure10))するのは極めて稀であると考えられており11),文献的にも,脳血管造影や手術によって確認された症例は,現在まで僅かに7例3,6,7,9,14,16)を数えるに過ぎないようである.
最近,私達はクモ膜下出血にて発症し,中大脳動脈の動脈瘤が証明され,約5カ月後に手術により動脈瘤の自然治癒が確認された症例を経験したので,若干の文献的考察を行い報告する.
A case of spontaneuously cured intracranial aneurysm was described in detail. Seven cases verified by angiography or operation had been reported so far in the literature. Duration from the first angiography to nonfilling of aneurysm were within 6 months in 3 cases, 2 years in 1, 5 years in 1 and 15 years in 1.
The presented case was a 42-year-old male who had an episode of the subarachnoid hemorrhage on September 11, 1972 during medication for a sepsis. A carotid angiography revealed an oval intracranial aneurysm of 8×5 mm. size at the trifurcation of the left middle cerebral artery.
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