1. Department of Surgery, Oncology and Gastroenterology, Endocrine Surgery Unit, University of Padua , Padua , Italy
2. Department of Medicine, Institute of Radiology, University of Padua , Padua , Italy
3. Department of Medicine, Pathology Unit, University of Padua , Padua , Italy
4. Department of Pathology, Azienda ULSS2, Marca Trevigiana , Treviso , Italy
5. Department of Medicine, Endocrinology Unit, University of Padua , Padua , Italy