CTICasesSubclavian artery aneurysm secondary to dialysis access
Imaging findings
CT shows a large, partially thrombosed left subclavian artery aneurysm causing rightward deviation of the trachea, in a patient with renal osteodystrophy and a history of a left arm hemodialysis fistula.
Key takeaways
High-flow hemodialysis access can lead to proximal arterial enlargement and aneurysm formation, particularly in the subclavian artery. Chronic arterial occlusion and renal osteodystrophy are helpful diagnostic clues.
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