label: gallbladder biliary intraepithelial neoplasia
label_lc: gallbladder biliary intraepithelial neoplasia
description: A neoplastic, non-invasive lesion that affects the gallbladder epithelium. It is characterized by the presence of atypical epithelial cells with an increased nuclear/cytoplasmic ratio, nuclear hyperchromasia, and loss of nuclear polarity.