Intraductal papillary-mucinous neoplasia of the pancreas: Histopathology and molecular biology

Figure 2 Histological features of different intraductal papillary-mucinous neoplasm types. A: Gastric-type intraductal papillary-mucinous neoplasm (IPMN) with short foveolae-like papillae and clusters of pyloric-type glands (× 50); B: Intestinal-type IPMN characterized by villus-like papillae lined with columnar mucin-rich epithelium (× 25); C: Pancreatobiliary-type IPMN consisting of complex arborizing papillae lined by severely dysplastic epithelium (× 25); D: Oncocytic-type IPMN showing complex papillae and formation of solid areas (× 25).