R Costi1, A Zarzavadjian Le Bian2,3, L Sarli4. 1. Department of Surgical Sciences, Parma University, Parma, Italy. 2. Department of Surgical Sciences, Parma University, Parma, Italy. spleen2008@live.fr. 3. Division of Gastrointestinal Surgery, Simone Veil Hospital, 14, Rue Saint-Prix, 95600, Eaubonne, France. spleen2008@live.fr. 4. General Surgery Unit, Fidenza Hospital, Fidenza, Italy.