[Complex renal lithiasis: conservative surgery]. / Litiasis renal compleja: cirugía conservadora.

We report a case of complicated renal lithiasis which had been successfully treated by conservative surgery. The present case shows that this surgical procedure continues to be a valid therapeutic option for this pathology, although occasionally the new, less invasive treatment modalities that continue to develop are utilized in the treatment of renal lithiasis far beyond the indications.