left subclavian artery 左锁骨下动脉闭塞

There is occlusion of the left subclavian artery soon after its origin from the aorta. This would result in loss of peripheral pulses in the left upper extremity. Takayasu arteritis leads to ‘pulseless disease’ because of involvement of the aorta, particularly the arch, and branches such as coronary, carotid, and renal arteries with granulomatous inflammation, aneurysm formation, and dissection. Fibrosis is a late finding. The pulmonary arteries can occasionally be involved as well.

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