Intrahepatic intraductal papillary neoplasm of the bile duct with low-grade dysplasia presenting as high biliary obstruction and hepatolithiasis: a case report
Background Intraductal papillary neoplasm of the bile duct (IPNB) is an uncommon biliary epithelial neoplasm and an important precursor lesion of cholangiocarcinoma. The educational value of this case lies in demonstrating that IPNB may be clinically masked by hepatolithiasis and biliary obstruction, creating a signifi...