Mar 7, 2023 · A brain aneurysm (AN-yoo-riz-um) — also known as a cerebral aneurysm or intracranial aneurysm — is a bulge or ballooning in a blood vessel in the brain. An aneurysm often looks like a berry hanging on a stem.

Mar 7, 2023 · You also may be given tests if you show symptoms of an unruptured brain aneurysm. These symptoms may include pain behind the eye, changes in vision or double vision. Screening tests and procedures used to diagnose and detect brain aneurysms include: CT scan.

May 12, 2023 · What you should know about cerebral aneurysms. American Stroke Association. https://www.stroke.org/en/about-stroke/types-of-stroke/hemorrhagic-strokes-bleeds/what-you-should-know-about-cerebral-aneurysms. Accessed Dec. 20, 2022. Brain aneurysm basics. Brain Aneurysm Foundation. https://www.bafound.org/about-brain-aneurysms/brain-aneurysm-basics/.

Apr 6, 2022 · A ruptured brain aneurysm leads to a serious type of stroke called subarachnoid hemorrhage, which involves bleeding over the surface and into deeper parts of the brain. These strokes can quickly become life-threatening if not treated promptly.

Apr 2, 2025 · An aneurysm is a bulge or ballooning in the wall of a blood vessel. An aneurysm can break open. This is called a rupture. A ruptured aneurysm causes bleeding inside the body. It often leads to death. Some aneurysms cause no symptoms. You might not know you have an aneurysm even if it is large.

Mar 7, 2023 · Highly ranked Mayo Clinic doctors use CT-scanning, MRI, computerized tomography angiography, magnetic resonance angiography, cerebral arteriography, cerebrospinal fluid examination and other tests to diagnose and treat brain aneurysm.

Mar 31, 2025 · A brain aneurysm, also called a cerebral aneurysm, is a bulge or ballooning in a blood vessel in the brain. Dr. Chris Fox , a Mayo Clinic neurosurgeon, says there are two broad categories of aneurysms: ruptured aneurysms, which are neurosurgical emergencies, and unruptured aneurysms, where there is time to establish a treatment plan that may ...

May 10, 2023 · Cerebral aneurysm. American Association of Neurological Surgeons. http://www.aans.org/en/Patients/Neurosurgical-Conditions-and-Treatments/Cerebral-Aneurysm. Accessed Nov. 15, 2021. Jankovic J, et al., eds. Intracranial …

Apr 23, 2022 · Although the precise etiology of brain aneurysm is unknown, the cause might include a genetic component. Mayo Clinic recommends regular MRI of individuals with a family history of aneurysm, to help prevent a ruptured aneurysm and hemorrhagic stroke.

Sep 25, 2024 · A brain aneurysm is a weak spot in a blood vessel that bulges out. If it bursts, it can cause dangerous bleeding within the brain. Illustration shows a woman with an unruptured aneurysm.