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Journal of Korean Neurosurgical Society > Volume 26(8); 1997 > Article
Journal of Korean Neurosurgical Society 1997;26(8): 1154-1157.
Aneurysm at the Origin of the Uncal Artery Arising from the Internal Carotid Artery.
Soon Chan Kwon, Sang Keun Park, Jeom Dae Kwon, Hyung Shik Shin, Sang Jin Kim
Department of Neurosurgery, College of Medicine, Inje University, Sanggye Paik Hospital, Seoul, Korea.
An aneurysm arising from the intracranial portion of the internal carotid artery(ICA) is usually found at the junction of the ophthalmic, superior hypophyseal, posterior communicating or anterior choroidal artery, or at the bifurcation of the internal carotid, but very rarely at the junction of the persistent trigeminal artery. We present a case of a 49-year-old man who presented with a massive subarachnoid hemorrhage, with large intracerebral hematoma due to rupture of the aneurysm originating from the distal portion of the internal carotid artery. During surgery, we found that the aneurysm was originated at the junction of the internal carotid artery and the artery arising from the distal to anterior choroidal artery. We considered this artery to be an anatomical variant of the uncal artery(UA) arising from the internal carotid artery.
Key Words: Internal carotid artery; Aneurysm; Uncal artery
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