Bile Duct Intraductal Papillary Neoplasm, High Grade

**Semantic type:** Neoplastic Process

**Definition:** An intraductal papillary neoplasm that arises from the epithelium of the intrahepatic or extrahepatic bile ducts. It is characterized by the presence of severe epithelial atypia.

**Synonyms:** - Bile Duct IPN with High Grade Intraepithelial Neoplasia - Bile Duct Intraductal Papillary Neoplasm with High Grade Intraepithelial Neoplasia - Bile Duct Intraductal Papillary Neoplasm, High-Grade - Bile Duct Papillary Neoplasm with High Grade Intraepithelial Neoplasia - Intraductal Papillary Neoplasm with High Grade Intraepithelial Neoplasia - Intraductal papillary neoplasm with high grade intraepithelial neoplasia