This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Treatment of femoral artery aneurysm \nSelect and explain. \nA. Ultrasound guided compression of the neck of aneurysm, B. Thrombin injection, C. Bypass graft repair, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Femoral and Popliteal artery aneurysms \n\nFemoral and Popliteal artery aneurysms constitute about 90% of peripheral aneurysms. Femoral 20% and Popliteal 70%.\nThe majority of these aneurysms are the degenerative type.\nMore common in men. Popliteal artery aneurysms are almost always seen in men (97%)\nMore than 50% are bilateral.\nLarge no. of patients have associated aortic aneurysms.\nLike aortic aneurysms, they are silent until critically symptomatic. However, unlike aortic aneurysms, they rarely rupture. \nThe presenting manifestations are due to peripheral embolization and thrombosis leading to distal limb ischemia.\nPeripheral aneurysms rarely may also produce symptoms by compressing the local vein or nerve.\n\nImaging:\n\nDuplex color ultrasound is inv of choice to confirm the diagnosis of peripheral aneurysms.\n\nTreatment\n\nIndications for treatment include\nacute lower limb ischemia, or\ntransverse diameter greater 2 cm or\npresence of mural thrombus.\nTreatment consists of\nopen surgery with prosthetic interposition grafting for femoral aneurysms and saphenous vein grafting for popliteal aneurysms.\nendovascular repair with stent grafts\nPseudoaneurysm of the femoral artery due to arterial punctures can be successfully treated using ultrasound-guided compression of the neck of the aneurysm with or without thrombosis of the aneurysm by thrombin injection', 'role': 'assistant'}]