1. Neuroradiology Unit, Department of Biomedical Sciences and Morphological and Functional Images, and
2. Section of Neurosurgery, Department of Experimental Biomedicine and Clinical Neurosciences (BIONEC), University of Palermo, Italy
3. Departments of Human Pathology,
4. Neurology,
5. Neurosurgery, and
6. Oncology, University of Messina; and