What is an aneurysm?
An aneurysm forms when the wall of a blood vessel dilates and causes an artery to become abnormally large. A brain, or cerebral, aneurysm can be detected with imaging tests such as MRIs, CAT scans and X-rays.
Aneurysms are common in the aorta, abdomen and brain, but can occur in any vessel in the body. A brain aneurysm forms a weak bulge in an artery of the brain that resembles a small balloon. These aneurysms can occur in a person of any age, although they are generally more common in females rather than males, and adults rather than children.
Early detection and prevention is key to effectively treating and recovering from aneurysms. Some people with brain aneurysms recover with little or no neurological loss. It is possible for an aneurysm to rupture and cause hemorrhage. This can lead to internal bleeding in the head. Such a case would require immediate medical attention.