1. Section of General Surgery, Department of Human Pathology of the Adult and Evolutive Age “Gaetano Barresi”, University of Messina, Via Consolare Valeria, 98125 Messina, Italy
2. Section of Radiological Sciences, Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Policlinico “G. Martino” Via Consolare Valeria 1, 98125 Messina, Italy