Expandable metallic stent placement for nutcracker phenomenon

A 40-year-old woman presented with asymptomatic gross hematuria caused by t he nutcracker phenomenon. Despite treatment with hemostatic agents and inje ction of silver nitrate into the renal pelvis, the hematuria had continued, and severe anemia (hematocrit 17%) had developed. We performed expandable metallic stent (EMS) placement across the left renal vein. Although mild he maturia continued, the anemia resolved after this interventional radiothera py. EMS placement is a minimally invasive therapy for the nutcracker phenom enon; (C) 1999, Elsevier Science Inc. All rights reserved.