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Neurological Surgery No Shinkei Geka Volume 22, Issue 7 （July 1994）

Neurological Surgery 脳神経外科 22巻7号（1994年7月発行）

Japanese English

症例

術前診断が困難であった完全血栓性末梢性中大脳動脈瘤の1例 Completely Thrombosed Large Aneurysm of the Distal Middle Cerebral Artery:A case report 岡秀宏 ¹ , 倉田彰 ¹ , 宮坂佳男 ¹ , 小林郁夫 ¹ , 大桃丈知 ¹ , 矢田賢三 ¹ , 森井誠二 ¹ , 菅信一 ² Hidehiro OKA ¹ , Akira KURATA ¹ , Yoshio MIYASAKA ¹ , Ikuo KOBAYASHI ¹ , Taketomo OOMOMO ¹ , Kenzoh YADA ¹ , Seiji MORII ¹ , Shinichi KAN ² ¹北里大学脳神経外科 ²北里大学放射線科 ¹Department of Neurosurgery, Kitasato University School of Medicine ²Department of Radiology, Kitasato University School of Medicine キーワード： Distal aneurysm , Middle cerebral artery , Giant aneurysm , Thrombosed aneurysm , Cavernous angioma Keyword: Distal aneurysm , Middle cerebral artery , Giant aneurysm , Thrombosed aneurysm , Cavernous angioma pp.677-680

発行日 1994年7月10日 Published Date 1994/7/10

DOI https://doi.org/10.11477/mf.1436900877

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Abstract 文献概要
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I．はじめに

　今回，われわれは画像所見において血管腫との鑑別が困難であった完全に血栓化した末梢性中大脳動脈瘤を経験したので若干の文献的考察を加え報告する．

A 19 year old male was admitted for evaluation after a seizure. Physical and neurological examination was normal. CT demonstrated an en larged, high density mass in the right parietal lobe. MRI showed a homogeneous high intensity T1 weighted mass, sur-rounded by a low intensity T2 weighted rim in the right parietal lobe. Angiography did not show any abnormal findings. A diagnosis of cavernous angioma with primary bleeding in the subcortical region of the right parietal lobe was made after radiological examina-tion.

Histological examination showed a completely throm-hosed aneurysm. The mechanism of the complete thrombosis and the growth of this large aneurysm and the shortcomings of radiological examination are discussed.