Fig. 4From: Intrahepatic cholangiocarcinoma with extensive intraductal extension of high-grade biliary intraepithelial neoplasia: a case reportBile cytology. The cytology examination revealed clusters of epithelial cells with features, such as anisokaryosis and hyperchromatic nuclei with irregular shape. This finding definitively confirmed the presence of adenocarcinoma cellsBack to article page