PDAC is associated with two major types of asymptomatic precancerous lesions - microscopic pancreatic intraepithelial neoplasia (PanINs) and macroscopic mucin-producing cystic neoplasms, namely, ...

At ERCP, mucin can be seen extruding from the ampulla of Vater, a so called “fish-eye” lesion that is virtually diagnostic of IPMN. Initial reports suggested a male predominance, but more recent ...