ANURIA DUE TO INTRARENAL BLOOD-CLOTS IN SOLITARY KIDNEY AFTER CHANGE OF URETERAL STENT - RESOLUTION WITH MINIMALLY INVASIVE EVACUATION

Treatment of patients who are in pain or have uremia secondary to uret eral obstruction has been a challenge to urological surgeons for decad es. Patients with a reduced general condition are usually not candidat es for surgery and ureteral stents can provide adequate palliation. A common complication of retrograde stent placement is urothelial injury with subsequent microscopic hematuria. Obstructive blood clots may so metimes form in the upper urinary tract. However, gross hematuria rare ly develops and its presence may indicate erosion of the proximal or d istal stent tip into the surrounding tissues.(1) If there is urothelia l injury of the renal pelvis a coagulum tamponade can develop. We trea ted a woman with a solitary kidney and ureteral obstruction resulting from malignancy in whom gross hematuria developed after a stent change . She had anuria secondary to intrarenal blood clots. We report a simp le, minimally invasive technique for the evacuation of intrarenal bloo d clots.