Intracranial aneurysm
Intracranial aneurysm (pronunciation: /ɪn.trəˈkreɪ.ni.əl ˈæn.jʊ.rɪ.zəm/), also known as a cerebral aneurysm or brain aneurysm, is a cerebrovascular disorder in which weakness in the wall of a cerebral artery or vein causes a localized dilation or ballooning of the blood vessel.
Etymology
The term "intracranial aneurysm" is derived from the Greek words "intra" (within), "kranion" (skull), and "aneurysma" (dilatation).
Definition
An intracranial aneurysm is a pathological dilatation of a cerebral artery that results from a weakness in the arterial wall. This weakness can be congenital, resulting from genetic factors, or acquired, due to factors such as hypertension, atherosclerosis, or head trauma.
Symptoms
Symptoms of an intracranial aneurysm can vary greatly depending on its size and location, and whether it has ruptured or not. Common symptoms include severe headache, nausea, vomiting, blurred vision, and sensitivity to light. If the aneurysm ruptures, it can cause a subarachnoid hemorrhage, which is a medical emergency.
Diagnosis
Diagnosis of an intracranial aneurysm is typically made through imaging studies such as a computed tomography (CT) scan or magnetic resonance imaging (MRI). In some cases, a cerebral angiography may be performed to visualize the blood vessels in the brain.
Treatment
Treatment options for an intracranial aneurysm depend on a variety of factors, including the size and location of the aneurysm, the patient's age and overall health, and whether the aneurysm has ruptured. Treatment options may include observation, endovascular coiling, or surgical clipping.
Related Terms
- Subarachnoid hemorrhage
- Computed tomography
- Magnetic resonance imaging
- Cerebral angiography
- Endovascular coiling
- Surgical clipping
External links
- Medical encyclopedia article on Intracranial aneurysm
- Wikipedia's article - Intracranial aneurysm
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