| Isolated Dissecting Posterior Inferior Cerebellar Artery Aneurysm. |
| Young Mok Park, In Bo Han, Jung Yong Ahn |
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. |
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| ABSTRACT |
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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. |
| Key Words:
Dissecting aneurysm; Posterior inferior cerebellar artery; Embolization |
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