1. Department of Neurosurgery; Ruhr University Bochum, Johannes Wesling Hospital Minden; Minden Germany
2. Institute of Pathology; Ruhr University Bochum; Bochum Germany
3. Department of Radiology; Ruhr University Bochum, Johannes Wesling Hospital Minden; Minden Germany
4. Department of Dermatology; University Hospital Essen, University Duisburg-Essen, West German Cancer Center and the German Cancer Consortium (DKTK); Essen Germany
5. Dermatopathologie bei Mainz; Nieder-Olm Germany