1 Department of Digestive and Oncological Surgery Claude Huriez University Hospital Lille, France North of France University Lille, France Inserm, UMR837, Team 5 "Mucins, Epithelial Differentiation and Carcinogenesis" JPARC Lille, France SIRIC OncoLille Lille, France Department of Digestive and Oncological Surgery Claude Huriez University Hospital Lille, France North of France University Lille, France Department of Digestive and Oncological Surgery Claude Huriez University Hospital Lille, France North of France University Lille, France Inserm, UMR837, Team 5 "Mucins, Epithelial Differentiation and Carcinogenesis" JPARC Lille, France.