Popliteal amyloidoma presenting with leg ischemia in a chronic dialysis patient

The authors report a case of bilateral popliteal amyloidoma causing stenosi s of the popliteal artery and vein. This patient had been treated with hemo dialysis for 26 years. The diagnosis was made with MR angiography. A poplit eal tumor of the right knee was resected surgically and the histologic exam ination showed deposition of amyloid. After resecting the popliteal tumor, the severe leg pain and intermittent claudication improved. This report sug gests that popliteal amyloid tumors should be considered in a patient under going long-term hemodialysis who complains of leg pain and intermittent cla udication.