Intravenous urography or CT scans are more helpful by showing the stone and delineating the pelvic calyceal anatomy. The treatment recommended of this type of renal stone is based on complete removal of all stone material after Sterilization of the urine with antimicrobial treatment. The elimination of all residual fragments can be obtained by the combinaison of different techniques: percutaneous nephrolitotomy, extracorporeal shockwave lithotripsy, retrograde ureteroscopic lithotripsy, open surgery. No treated, staghorn stone can cause septicemia, chronic renal insufficiency, destruction of kidney by infection and chronic calicial dilatation.