ERBB2 and pancreatic adenocarcinoma: Diffuse membranous staining was found for integrin αvβ6, CEA, cMET, EGFR, HER2, and uPAR in pancreatic adenocarcinoma (Table 3) and integrin αvβ6, CEA, cMET, EGFR, EpCAM, HER2, and VEGFR2 in periampullary adenocarcinoma (Table 4).