1. Urology Section, Department of Surgery, University of Catania, 95124 Catania, Italy
2. Department of Urology, European Institute of Oncology, IRCCS, 20139 Milan, Italy
3. Department of Urology, “Sant’Andrea” Hospital, “La Sapienza” University, 00185 Rome, Italy
4. Department of Experimental Oncology, Mediterranean Institute of Oncology (IOM), 95029 Catania, Italy
5. Pathology Unit, Garibaldi Hospital, 95123 Catania, Italy
6. Department of Medical and Surgical Sciences and Advanced Technologies “G. F. Ingrassia”, Anatomic Pathology, University of Catania, 95124 Catania, Italy