1. Department of Urology, Toho University Sakura Medical Center, Sakura, Japan;
2. Department of Radiology, Toho University Sakura Medical Center, Sakura, Japan;
3. Department of Surgical Pathology, Toho University Sakura Medical Center, Sakura, Japan;
4. Department of Pathology, Seirei Sakura Citizen Hospital, Sakura, Japan