Abdominal aortic aneurysm classification

Abdominal Aortic Aneurysm Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Aneurysms are usually classified by their shape.

Fusiform Aneurysms

• Most common type seen in the infrarenal aorta
• Diffuse, circumferential

Saccular Aneurysms

• Involve only a portion of the circumference, with a characteristic outpouching of the vessel wall.