Pseudoaneurysm formation after flexible ureterorenoscopy and electrohydraulic lithotripsy.

Although electrohydraulic lithotripsy (EHL) is regularly used to fragment urinary calculi, it has the potential to cause significant renal tract damage. We report a complication of EHL use during flexible ureterorenoscopy, where recovery was complicated by delayed, prolonged haematuria secondary to the formation of a pseudoaneurysm in an interlobar renal artery. Embolisation was achieved by the insertion of a coil.