A 55-year old asymptomatic female patient with a 2-month history of radical hysterectomy and pelvic external beam irradiation for stage IIb cervical cancer had an abdominal CT (not shown) that depicted left hydronephrosis. There was no evidence of residual pelvic tumor or lymphadenopathy.
Tumor markers (CEA, Ca 125, SCC) were normal. Attempts to place an indwelling ureteral stent in a retrograde fashion failed twice because "the stricture was very tight".
The patient was referred to our interventional radiology service for percutaneous nephrostomy and stenting.
Percutaneous nephrostomy was performed under local anesthesia and conscious sedation, using the Acustic percutaneous access set (Meditech, Boston Scientific Corporation, Watertown, MA, USA).
The needle was inserted in an upper pole calyx under ultrasonographic guidance (Fig. 1). A platimun-tip 0.018-inch guide wire was introduced and subsequently exchanged for a
0.038-inch guide wire. A 5-F cobra catheter (Terumo, Leuven, Belgium) was placed in the pyeloureteric junction and an antegrade pyelography depicted an obstruction at the pelvic portion of the ureter (Fig.2). The obstructing lesion was transversed with a 0.038-inch stiff hydrophilic guidewire (Terumo, Leuven, Belgium), and a 6-F biliary manipulation catheter (William Cook Europe, A/S). An Amplatz stiff guidewire (William Cook Europe, A/S) was inserted with its floppy end coiled into the bladder.The stricture was dilated with a 6-mm high pressure balloon (Blue Max, Meditech, Boston Scientific Corporation, Watertown, MA, US) for 2 minutes (Fig. 3 a&b). After successful dilatation, a 10-F,30-cm long peel away sheath was introduced into the ureter(William Cook Europe, A/S) A 8-F double pig-tail ureteral stent (Meditech, Boston Scientific Corporation, Watertown, MA, USA) was inserted and a 8-F nephrostomy catheter was finally placed. Immediate nephrostogramm showed good stent patency (Fig.4). The patency was checked 3-days later, and the external catheter was removed. The patient was afebrile and was discharged home.Abdominal ultrasonography performed 3 months after the procedure depicted abscence of hydronephrosis. The patient's urologist plans to remove the double pig-tail stent after a total 6-month-period.