J Korean Neurosurg Soc.  1995 Oct;24(10):1263-1268.

Aneurysm of the Posteior Inferior Cerebellar Artery Associated with Arteriovenous Malformation: Case Report

• Jeong SH
• Jang SJ

Abstract

A case of a ruptured aneurysm originating at the proximal portion of the left posterior inferior cerebellar artery and an arteriovenous malformation in the left cerebellar hemisphere fed by the same artery is reported. The coincidental occurrence of these two vascular anomalies within the posterior fossa is uncommon. Aneurysms of the posterior inferior cerebellar artery require special consideration during surgical planning and operation because of the proximity of the posterior inferior cerebellar artery to the brain stem and to the origin of the lower cranial nerves. In our reported case, the aeurysm was located 2.7mm from the midline and 4.7mm from the clivus when measured radiometrically. The operation was carried out with the patient in a three quarter prone position through a left lateral suboccipital approach. Clipping of the neck of the aneurysm and total removal of the arteriovenous malformation were performed successfully in a one-stage operation.

Keyword

Intracranial aneurysm; Posterior inferior cerebellar artery; Arteriovenous malformation

MeSH Terms

Aneurysm*
Aneurysm, Ruptured
Arteries*
Arteriovenous Malformations*
Brain Stem
Cranial Fossa, Posterior
Cranial Nerves
Humans
Intracranial Aneurysm
Neck
Prone Position