Which statement about popliteal artery aneurysm is correct?
- A It is the most common peripheral artery aneurysm ✓
- B Rupture is its most frequent mode of presentation
- C It is rarely associated with abdominal aortic aneurysm
- D It is almost always unilateral
Correct answer: A. It is the most common peripheral artery aneurysm
Explanation
The popliteal artery is the most common site of peripheral arterial aneurysm, accounting for about 70 percent of such lesions. It presents most often with acute or chronic limb ischaemia from mural thrombosis and distal embolisation, while rupture is rare. Around half of cases are bilateral, and up to 40 to 50 percent coexist with an abdominal aortic aneurysm, so the aorta should always be imaged once a popliteal aneurysm is found.
Reference: Bailey and Love's Short Practice of Surgery, 28th ed.
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