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A 45 year-old woman developed headaches followed by a right hemiparesis and a right fourth nerve palsy. |
| Basilar Artery Aneurysm. Cerebral angiogram; Left vertebral artery injection; (Left) AP view; (Right) lateral view. Note the large fusiform basilar artery aneurysm. Although aneurysms typically come to clinical attention when they bleed, rarely they enlarge resulting in mass effect and focal neurological signs. PICA = posterior inferior cerebellar artery, SCA = superior cerebellar artery, PCA = posterior cerebral artery. |
Revised
11/23/06.
Copyrighted 2006. David C Preston