 So, let's continue in the mini-invasive techniques. The second debate is about small primary illa endophytic renal tumor. Cryos therapy will be defended by Roberto Salvioni. Good morning. Thank you for the invitation. I'm urologist. My interventional radiologist, Dr. Carlos Brafico, is now in Berlin at the International Radiologist Congress. Sorry. The cryo-ablation, the cryotherapy is used to produce a temperature decrease in the tissues, in the tumor, between minus, then, 20 degree and 15 degree. Okay, thank you. The damage in the tissues is obtained by crystal formation, co-active necrosis, apoptosis, and damaging the vessel. Efficacy, low morbidity, and short hospital stay are required at the local therapy. And cryotherapy, now in cryotherapy, it's possible to have in two situations. By laparoscopic approach from the urologist and in percutaneous approach by the radiologist. The difference in control of the tumor is the same in the literature, but percutaneous approach is superior in diminishing the comorbidity, like operative time, bleeding, transfusion, and et cetera. For this reason, in our institution, now we prefer the percutaneous approach. So the argument of today is the eye and the feet is more than mass. There are different definitions, but this problem is now about less than 20% of all renal mass in the tumor and in the renal. This is our experience, and now this is the particular experience in eye and the feet in renal mass. Can you see this lesion is only 11% of the older cases, but it's important to see the good result in outcome, the control of the tumor. You can see the major complication on fistular trovenosa and shock and transfusion in one patient, but these are associated with the tumor side and the particular side of the lesion. It's important to see the normal renal function preserved in all the patients. Two cases. The first is one patient with a big, not a small, right kidney lesion. After the treatment, at the first contour, cities can show at one mount the artrovenosa fistula. To repair this damage is necessary to embolization with radiology intervention. We can see the procedure. At the end of the procedure, the patient conserves the kidney and the renal function. The other case is a particular case who is seeing our institute with the proposed by the other center bilateral nephrectomy. We treat this patient with TKI therapy and after the response, the patient was submitted to radical right nephrectomy and conservative left nephrectomy. But after 10 months, the patient relapsed in the solitary kidney and the problem is what do you do? They open or percutaneous calibration or the other. We decided to treat the patient with TKI and then with percutaneous calibration. Now the patient is relieved without tumor with renal function conserved. Our conclusion is, in particular, in small renal, renal mass, cryotherapy is possible. Thank you.