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Japanese

Shrinkage of Carotid Plaque in a Patient with Transient Ischemic Attack Shuji Arakawa 1 , Shoji Arihiro 1 , Shoichi Arai 2 , Rie Satou 3 , Kinya Tamaki 1 , Masatoshi Fujishima 1 , Setsuro Ibayashi 4 , Mitsuo Iida 4 1Departments of Cerebrovascular Disease, Hakujyuji Hospital 2Departments of Neuroradiology, Hakujyuji Hospital 3Departments of Clinical Physiology, Hakujyuji Hospital 4Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University Keyword: plaque rupture , unstable plaque , carotid artery , transient ischemic attack , borderzone infarction pp.797-800
Published Date 2003/9/1
DOI https://doi.org/10.11477/mf.1406100564
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Abstract

A 65-year-old man visited to our hospital, because he felt dull pain on the right side of the neck and had transient weakness of the left hand repeatedly. Carotid ultrasonography revealed a large plaque with severe stenosis and ulceration at the bifurcation of right common carotid artery. The plaque was mostly hypoechoic and only the basal part was hyperechoic. Magnetic resonance (MR) study showed multiple high-intensity spots in superficial borderzone area of the right cerebral hemisphere on fluid attenuated inversion recovery images, although diffusion-weighted images revealed no abnormality. Intracranial stenotic lesion was not detected by MR angiography. We diagnosed transient ischemic attacks due to right carotid artery stenosis. Nine days after the symptom onset, he showed no signs of cerebral ischemic attacks and seven days later he began taking aspirin and remained stable. Three months later, carotid ultrasonography showed marked shrinkage of the carotid plaque, of which hypoechoic part virtually disappeared. Release of the atheroma gruel and/or intraplaque hemorrhage due to plaque rupture might lead to dramatic change of the carotid plaque.


Copyright © 2003, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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