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Ruptured Cerebral Aneurysm Associated with Arachnoid Cyst Wataru HARAGUCHI 1 , Ichiro KAWAHARA 1 , Ayaka MATSUO 1 , Tomoya MORITSUKA 2 , Kazuya HONDA 2 , Takehiro ITO 2 , Takeshi HIU 1 , Tomonori ONO 1 , Ryujiro USHIJIMA 1 , Keisuke TSUTSUMI 1 1Department of Neurosurgery, National Hospital Organization Nagasaki Medical Center 2National Hospital Organization Nagasaki Medical Center Keyword: arachnoid cyst , cerebral aneurysm , intracystic hemorrhage , subarachnoid hemorrhage pp.949-955
Published Date 2020/10/10
DOI https://doi.org/10.11477/mf.1436204301
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 Cerebral aneurysms and arachnoid cysts are relatively common cerebral malformations and the use of recent modalities has increased their detection rates. However, cerebral aneurysms associated with arachnoid cysts are unusual. We describe two cases of ruptured cerebral aneurysms associated with arachnoid cysts.

 According to previous reports, clinical presentation may sometimes be unusual, as cysts can prevent subarachnoid hemorrhage. Moreover, in some cases, CT may reveal typical arachnoid cysts without subarachnoid hemorrhage, without intracystic hematoma, or with subdural hematoma alone. These clinical presentations and radiologic findings can lead to delayed diagnosis of subarachnoid hemorrhage. Therefore, we should consider the coexistence of arachnoid cyst in case of a warning sign of aneurysm rupture.


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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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