An aneurysm is an abnormal bulging or ballooning in the wall of a blood vessel.
Many aneurysms cause no symptoms, but some cause pain, a pulsating sensation, pressure effects, or neurological symptoms depending on where they are.
Imaging helps show the aneurysm's size, shape, exact location, and whether it has features that increase the risk of rupture or treatment need.
CT angiography, MR angiography, ultrasound, or conventional angiography can help show its size, location, and risk features.
Management ranges from monitoring to endovascular treatment or surgery depending on the vessel, size, symptoms, and rupture risk.
This entry explains the finding. The next step is having a radiologist interpret your specific scan, not a general definition.
