Congenital aneurysm of the circle Willis?

Congenital aneurysm of the circle of Willis is a rare condition in which one or more of the blood vessels that form the circle of Willis are abnormally enlarged. The circle of Willis is a network of arteries at the base of the brain that supplies blood to the brain and spinal cord.

Congenital aneurysms of the circle of Willis are usually asymptomatic, but they can sometimes cause symptoms such as headaches, dizziness, and seizures. In some cases, congenital aneurysms can rupture, leading to a subarachnoid hemorrhage. A subarachnoid hemorrhage is a life-threatening condition in which blood leaks into the space between the brain and the skull.

Congenital aneurysms of the circle of Willis are typically diagnosed with imaging tests such as magnetic resonance angiography (MRA) or computed tomography angiography (CTA). Treatment for congenital aneurysms of the circle of Willis may include surgery, endovascular embolization, or observation.

Risk factors

The risk factors for congenital aneurysms of the circle of Willis are not fully understood, but some factors that may increase the risk include:

- Family history of aneurysms

- Certain genetic conditions, such as Ehlers-Danlos syndrome and Marfan syndrome

- Smoking

- High blood pressure

- Diabetes

- Atherosclerosis