MODERATORI ANDREA GREGORI MONZA ROBERTO NUCCIOTTI GROSSETO 15 maggio 1. RIRS OF A BIG STONE WITH CLEAR PETRA ACCESS SHEET ALBERTO DE GOBBI 2. RIRS DI CALCOLI ENDOPRENCHIMALI ALBERTO DE GOBBI 3. PEAS REMOVAL FROM BRONCHIAL TREE USING AN URETERAL STONE BASKET ALESSANDRO MARANO 4. UROLITHIASIS IN BRICKER: A CASE REPORT ANTONIO LO GIUDICE 5. RETROGRADE INTRARENAL SURGERY VS MINIATURIZED PERCUTANEOUS NEPHROLITHOTOMY TO TREAT RENAL STONES FROM 1.5 CM TO 2 CM IN DIAMETER ROBERTO CUMBO