Imaging of Neoplastic Disease of the Bile duct: Pathologic Correlation

WHO classified biliary tumor into benign (bile duct adenoma, microcystic adenoma, and bilary adenofibroma), premalignant lesion (Biliary intraepithelial neoplasia, grade 3 (BilIN-3), Intraductal papillary neoplasm with low- to intermediate-grade, Intraductal papillary neoplasm with high-grade, Mucinous cystic neoplasm with low- to intermediate-grade, Mucinous cystic neoplasm with high-grade), and malignant tumors (Intrahepatic cholangiocaricnoma, Intraductal papillary neoplasm with invasive carcinoma, and Mucinous cystic neoplasm with invasive carcinoma). In clinical practice, we should differentiate them from various benign conditions and each other. In this talk, I will present differential diagnosis of biliary lesions based on imaging phenotypes with pathologic correlation. And then TNM staging with pathologic correlation will be reviewed based on the 8th edition of NCCN guidelines.

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