Gallbladder Intracholecystic Papillary Neoplasm, High Grade

**Semantic type:** Neoplastic Process

**Definition:** An intracholecystic papillary neoplasm that arises from the epithelium of the gallbladder. It is characterized by the presence of severe epithelial atypia.

**Synonyms:** - Gallbladder ICPN with High Grade Intraepithelial Neoplasia - Gallbladder Intracholecystic Papillary (Tubular) Neoplasm with High Grade Intraepithelial Neoplasia - Gallbladder Intracholecystic Papillary Neoplasm with High Grade Intraepithelial Neoplasia - Gallbladder Intracholecystic Papillary Neoplasm, High-Grade - Gallbladder Intracystic/Intaductal Papillary Neoplasm with High Grade Intraepithelial Neoplasia - Gallbladder Papillary Neoplasm with High Grade Intraepithelial Neoplasia - Intracystic Papillary Neoplasm with High Grade Intraepithelial Neoplasia - Intracystic Papillary Tumor With High Grade Intraepithelial Neoplasia