Figure 1

Histologic examination of formalin-fixed, paraffin-embedded (FFPE) samples with hematoxylin and eosin (H&E) staining. The stages of the PanIN-IDC pathway are shown as normal pancreatic ductal epithelia (A), pancreatic intraepithelial neoplasm-1B (PanIN-1B) (B), PanIN-2 (C) and invasive ductal carcinoma (IDC) (D). The stages of the intraductal papillary mucinous adenoma (IPMA)-intraductal papillary mucinous carcinoma (IPMC) pathway are shown as IPM adenoma (E), IPM borderline (F) and IPM carcinoma (G). (Magnifications of A to G are 100×, 100×, 100×, 200×, 100×, 200×, 200×, respectively).