Basilar Aneurysm -
A 45 year-old woman developed headaches
followed by a right hemiparesis and a right fourth nerve palsy.
Cerebral angiogram; left vertebral artery injection. (Left) AP view;
(Right) lateral view. Note the large fusiform basilar aneurysm. Although aneurysms typically come to clinical
attention by bleeding, rarely they will enlarge and result in a mass
The Electronic Curriculum is copyrighted 1998, Case Western
School of Medicine.