Aneurysms of the Vertebral Artery
- 279 Downloads
Aneurysms of the vertebral artery are commonly found at the origin of the posterior inferior cerebellar artery (PICA). Other locations include the distal PICA and the vertebral junction. Rarely, a more proximal vertebral artery aneurysm can present in the spinal canal and lie beneath the highest denticulate ligament, which has to be transected to expose the lesion. Vertebral-PICA aneurysms usually present with subarachnoid hemorrhage, but large lesions can compress the lower cranial nerves or brain stem (Fig. 30-1).
KeywordsVertebral Artery Posterior Fossa Posterior Inferior Cerebellar Artery Occipital Condyle Lower Cranial Nerve
Unable to display preview. Download preview PDF.