label: Intrahepatic Bile Duct Biliary Intraepithelial Neoplasia
label_lc: intrahepatic bile duct biliary intraepithelial neoplasia
description: A neoplastic, non-invasive lesion that affects the intrahepatic bile duct epithelium.  It is characterized by the presence of atypical epithelial cells with an increased nuclear/cytoplasmic ratio, nuclear hyperchromasia, and loss of nuclear polarity.