1. Section of Anatomic Pathology, Department of Oncological Sciences, University of Bologna, Bellaria Hospital, Bologna, Italy
2. Section of Neurosurgery, Bellaria Hospital, Bologna, Italy
3. Section of Neuroradiology, Bellaria Hospital, Bologna, Italy
4. Section of Anatomic Pathology, Department of Oncological Sciences, University of Bologna, Bellaria Hospital, Bologna, Italy,