[An incrusted ureteral stent: use of a Lithoclast. Apropos of a case].

Ureteric stents can be complicated by incrustations, sometimes making it impossible to withdraw or replace the stent over a guide. In this exceptional indication, we report a case in which the use of the Swiss-Lithoclast pneumatic lithotriptor allowed withdrawal of an incrusted double J stent. There was no morbidity related to the use of the Lithoclast. Among the various techniques available for removal of these incrusted double J stents, endoprosthetic lithotripsy appears to be the most effective and the least invasive, in selected cases.