A cerebral aneurysm, also known as an intracranial or brain aneurysm, is a localized bulging or ballooning of a blood vessel within the brain. It occurs when there is weakness in the wall of a cerebral artery, leading to an abnormal dilation that resembles a small sac or blister. This condition is typically asymptomatic and may go unnoticed until it ruptures, causing a potentially life-threatening situation.
Cerebral aneurysms can develop in any blood vessel within the brain, but are commonly found in the circle of Willis, an arterial structure at the base of the brain that supplies blood to the brain and its surrounding areas. The exact cause of cerebral aneurysms is not fully understood, but various factors such as genetic predisposition, high blood pressure, smoking, and certain other medical conditions can increase the risk of their formation.
Ruptured cerebral aneurysms can lead to a serious condition called subarachnoid hemorrhage, in which bleeding occurs between the brain and the thin tissues that cover it. This can result in sudden and severe headaches, nausea, vomiting, blurred vision, seizures, loss of consciousness, and even coma or death if not promptly treated.
Diagnosis of cerebral aneurysms often involves imaging tests such as computed tomography (CT) scans, magnetic resonance imaging (MRI), or angiography. Treatment options for cerebral aneurysms include surgical clipping, endovascular coiling, and flow-diverting stents, depending on the location, size, and condition of the aneurysm.
In summary, a cerebral aneurysm is a localized abnormal dilation of a blood vessel in the brain, which can potentially rupture and cause life-threatening complications. Early detection, diagnosis, and appropriate management
