[1] Univ Catania, Dept Biomed Sci & Biotechnol, Anat & Histol, Catania, Italy
[2] Univ Catania, Dept Clin & Expt Med, Occupat Med, Via Santa Sofia 87, I-95123 Catania, Italy
[3] Civic MP Arezzo Hosp, ASP Ragusa, Canc Registry & Histopathol Dept, Ragusa, Italy
[4] Univ Catania, Dept Med & Surg Sci & Adv Technol, Anat, GF Ingrassia, Catania, Italy
[5] Univ Catania, Dept Med & Surg Sci & Adv Technol, Anat Pathol, GF Ingrassia, Catania, Italy