Aneurysms-Types

1. **Berry Aneurysm:** Consist of a small, spherical dlation of vessel at a bifurcation. Usually found in circle of Willis in the cerebral circulation.
 * __-Types of Aneurysms__**

2. **Fusiform Aneuysm:** Involves entire circumference of the vessel and is characterized by a gradual and progressive dilation of the vessel.

3. **Saacular aneurysm**: Extends over part of the circumference of the vessel and appears saclike.

4. **Aortic dissection:** false aneurysm resulting from a tear in the intimal layer of the vessel that allows blood to enter the vessel wall, dissecting its layers to create a blood-filled cavity.