Abdominal aortic aneurysm.

Abdominal aortic aneurysm is very common. 9% of patients older than 65 will have AAA.

What is the maximal axial diameter of the AAA?

<2.5 cm (Only applies to infrarenal abdominal aorta. This is normal caliber for suprarenal abdominal aorta.)

2.5-2.9 cm (Only applies to infrarenal abdominal aorta. This is normal caliber for suprarenal abdominal aorta.)

3.0-3.4 cm

3.5-3.9 cm

4.0-4.4 cm

4.5-4.9 cm

5.0-5.5 cm

> 5.5 cm

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