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Journal of Korean Neurosurgical Society 1995;24(12): 1560-1567. |
| Surgical Removal of a Large Distal Posterior Inferior Cerebellar Artery Aneurysm: Case Report. |
| Byeong Wook Hwang, Nam Hoon Oh, Soo Il Yoo, Jin Man Kim, Dal Sung Hwang, In Sun Ha, Yong Sung Lee |
| Department of Neurosurgery, Incheon Christian Hospital, Incheon, Korea. |
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| ABSTRACT |
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The authors report a rare case of right distal posterior inferior cerebellar artery(PICA) aneurysm arising from just distal to its vermian brance. A 36-year-old female patient presented with a sudden onset of headache, nausea, dizziness and ataxia without any other neurologic deficit. On brain computerized tomographic(CT) scan and magnetic resonance imaging(MRI), a well-defined round mass was detected just behind the fourth ventricle. On transfemoral vertebral angiogram(TFVAG), it was confirmed as a saccular aneurysm arising from the vermian brance of the right PICA. The aneurysm was initially directly clipped through bilateral suboccipital approach. Postoperative follow up angiogram after two weeks revealed a more enlarged aneurysm and an incompletely clipped neck. After making sufficient exposure of the aneurysm, the neck was reclipped and the sac removed.
Postoperative results were uneventful. |
| Key Words:
PICA; Vermian branch; Ataxia; TFVAG; Removal |
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