Diagnostic value of indirect imaging findings for high-grade pancreatic intraepithelial neoplasia: A multicenter study.
BACKGROUND Pancreatic intraepithelial neoplasia (PanIN), a microscopic precursor of pancreatic ductal adenocarcinoma, cannot be directly visualized by conventional imaging. Secondary parenchymal and ductal changes-focal pancreatic parenchymal atrophy (FPPA), main pancreatic duct (MPD) abnormalities, and cystic lesions-...