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KMID : 1001920070410050340
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Journal of Korean Neurosurgical Society
2007 Volume.41 No. 5 p.340 ~ p.342
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Extravasation from the Distal Anterior Choroidal Artery Aneurysm in Moyamoya Patient during Computed Tomographic Angiography
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Chong Jong-Yun
Yi Hyeong-Joong
Kim Kwang-Myung
Lee Seung-Ro
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Abstract
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Three-dimensional computed tomographic angiography (CTA), a representative noninvasive radiologic technique, is being widely used for detecting vascular lesions in specific intracranial bleeding under a certain circumstance (acute nontraumatic subarachnoid hemorrhage). We encountered a case of extravasation of the contrast medium on CTA images that appeared as ribbon-like high-attenuation lesion from an aneurysm at the distal anterior choroidal artery in a young adult moyamoya patient. As CTA is used more frequently, it is imperative to understand such unusual but, potentially lethal image findings to conduct a prompt intervention.
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KEYWORD
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Aneurysm, Computed tomographic angiography, Distal anterior choroidal artery, Extravasation, Moyamoya disease
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