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Aneurysm (Brain) (cont.)

What are the different kinds of brain aneurysms?

There are two main types of brain aneurysms -- saccular (berry) aneurysms and fusiform aneurysms. The most common type of aneurysm is saccular. Saccular or berry aneurysms look like a sack and are usually formed at the bifurcation or “Y” formation when a larger vessel splits into two vessels. These types of aneurysms are often found at the branches of larger arteries at the base of brain but may be found in other areas of the brain, too.

The second type, a fusiform aneurysm, is less common than a saccular aneurysm and is more stable and seldom ruptures. Fusiform aneurysms occur at the junction of the “Y” formation where a blood vessel branches and extends into both smaller vessels and also into the single larger vessel. Fusiform aneurysms don't develop any stems like saccular aneurysms.

Medically Reviewed by a Doctor on 3/24/2014

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