Gotoh T, Hashimoto Y, Yonehara T, Uchino M, Ando M
First Department of Internal Medicine, Kumamoto University School of Medicine.
Rinsho Shinkeigaku. 1996 Feb;36(2):312-7.
A 65-year-old man developed left drop hand, dysarthria and emotional incontinence. Brain CT and MRI revealed multiple cerebral infarctions in the cortex and subcortical white matter of the right temporal and parietal lobes which were in the distribution of the right middle cerebral artery. Cerebral angiography disclosed segmental narrowing (string sign) and two pseudoaneurysms in the right angular artery which were diagnosed as dissecting aneurysm of a branch of the middle cerebral artery. In this case, cerebral angiography was more useful than MRI in diagnosis of dissecting aneurysm of a branch of the middle cerebral artery. This was a very rare case of dissecting aneurysm of the middle cerebral artery localized in one of its branches.
一名65岁男性出现左手垂落、构音障碍和情感失禁。脑部CT和MRI显示右侧颞叶和顶叶皮质及皮质下白质有多处脑梗死，位于右侧大脑中动脉供血区域。脑血管造影显示右侧角动脉节段性狭窄（串珠征）和两个假性动脉瘤，诊断为大脑中动脉分支的夹层动脉瘤。在该病例中，脑血管造影在诊断大脑中动脉分支夹层动脉瘤方面比MRI更有用。这是一例非常罕见的大脑中动脉夹层动脉瘤局限于其一个分支的病例。
