Abstract
With the advancement of ureteroscopic equipment, it has become a safe and efficient technique that is widely used in our practice for wide variety of diseases. Here we present a 65-years old patient with 2cm right renal pelvic stone, who underwent uneventful right ureteroscopic lithotripsy. She developed symptomatic right renal abscess after one week time, which was treated with antibiotics and drainage successfully. Although ureteroscopic lithotripsy is safe and efficient technique in the management of urolithiasis, careful patient monitoring postoperatively is indicated as minor and major adverse events might be encountered.