[Calyceal diverticula: notes on endourological technique].

Percutaneous approach to complicated small caliceal diverticula is the first choice therapy. Generally, the open surgery is used large diverticula with renal parenchymal damage but, in selected cases, a percutaneous (PCN) treatment may be an effective alternative. The Authors report a case of inferior caliceal diverticulum associated to a parenchymal damage successfully treated using directed PCN management (electrical fulguration) and consequent injection of human fibrin glue.