1. Department of Urology; Technische Universität Dresden; Dresden Germany
2. Department of Urology; University Hospital Heidelberg; Heidelberg Germany
3. Department of Urology; University Hospital Essen; Essen Germany
4. Department of Radiology and Interventional Radiology; Technische Universität Dresden; Dresden Germany
5. Department of Pathology; Technische Universität Dresden; Dresden Germany
6. Department of Radiology; German Cancer Research Centre (DKFZ); Heidelberg Germany