A 59-year-old man visited our hospital due to right leg edema and right leg pain. Computed tomography revealed that the circumferential enhancement of bilateral external iliac arteries by soft tissue that had similar density as the adjacent psoas muscle and that the right external iliac vein that was constricted by those tissues. The patient was diagnosed as retroperitoneal fibrosis. He underwent stent implantation to the right external iliac vein stenosis and steroid therapy. His right leg edema and pain was immediately improved after the stent implantation and he achieved remission.
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