The Role of the Mesopancreas in Periampullary Malignancies. - David, Stephan O.; Alexander, Andrea; Haeberle-Graser, Lena; Yavas, Aslihan; Rug, Falko; Sultani, Ahmad B.; Vaghiri, Sascha; Esposito, Irene; Safi, Sami A.; Knoefel, Wolfram T. (Cancers, 2026)