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Journal of Korean Neurosurgical Society 2007;41(5): 340-342. |
Extravasation from the Distal Anterior Choroidal Artery Aneurysm in Moyamoya Patient during Computed Tomographic Angiography. |
Jong Yun Chong, Hyeong Joong Yi, Kwang Myung Kim, Seung Ro Lee |
1Department of Neurosurgery, Hanyang University Medical Center, Seoul, Korea. hjyi8499@hanyang.ac.kr 2Department of Neuroradiology, Hanyang University Medical Center, Seoul, Korea. |
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ABSTRACT |
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. |
Key Words:
Aneurysm; Computed tomographic angiography; Distal anterior choroidal artery; Extravasation; Moyamoya disease |
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