J Korean Neurosurg Soc.
2007 Mar;41(3):196-199. 10.3340/jkns.2007.41.3.196.
Isolated Dissecting Posterior Inferior Cerebellar Artery Aneurysm
- Affiliations
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- 1Department of Neurosurgery, Yongdong Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. jyahn@yumc.yonsei.ac.kr
- 2Department of Neurosurgery, Pundang CHA Hospital, College of Medicine, Pochon CHA University, Seongnam, Korea.
- KMID: 1881683
- DOI: http://doi.org/10.3340/jkns.2007.41.3.196
Abstract
- Dissecting aneurysms frequently involve the vertebral arteries and their branches, but those involving the posterior inferior cerebellar artery (PICA) and not vertebral artery at all are extremely rare. We present a case of an isolated dissecting aneurysm of the PICA without involvement of vertebral artery. A 54-year-old man presented with dizziness and headache. MR imaging of the brain showed a cerebellar infarction of the left PICA territory. MR angiographic and cerebral angiographic studies revealed a dissecting fusiform aneurysm involving the left proximal PICA. Subsequently, the patient underwent GDC embolization. A postembolization angiogram demonstrated complete obliteration of the aneurysm. In this report, the treatment modalities for this rare condition is described with review of the literature.
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