Abstract:
An aneurysm is defined as a localised dilatation of an artery with an increase in diameter of ≥ 50% than that of the 'normal' undilated adjacent vessel. Aneurysms may occur in all arteries but are most commonly found in the infra-renal abdominal aorta (Fig.1). Abdominal aortic aneurysms (AAAs) are often associated with iliac, femoral and popliteal artery aneurysms, the last accounting for the majority of peripheral arterial aneurysms.
