Allium stent for the treatment of a malignant ureteral stenosis: a paradigmatic case



The aim of this study was to present a paradigmatic case where the new-generation Allium URS stent was the optimal choice to treat a malignant ureteral stenosis.


We describe in detail all the steps of our surgery, performed on a 69-year-old patient with left hydronephrosis caused by lumbo-aortic nodal metastases compressing the ureter. The patient was intolerant to double-J stent due to strong irritative urinary symptoms. Allium URS stent was positioned under fluoroscopy in replacement of pre-existing double-J stent.


Our approach was successful and irritative urinary symptoms disappeared. At 6 months, the Allium URS was correctly positioned and no hydronephrosis was detected on ultrasound. The stent can be left in place for a maximum of 3 years.


In complicated scenarios of chronic ureteral stenosis, the new-generation Allium URS can be an interesting option to treat the obstruction while sparing the patient the irritative urinary symptoms and periodic replacements typical of a double-J stent.

In press - Corrected proof

Article Type: CASE REPORT



Marco Oderda, Sergio Lacquaniti, Giuseppe Fasolis

Article History


Financial support: This study has not received any funding or support.
Conflict of interest: The authors have no conflicts of interest.

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  •  Department of Urology, San Lazzaro Hospital, Alba - Italy
  •  Department of Surgical Sciences, Urology Unit, University of Turin, Turin - Italy

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