Benign Extrahepatic Bile Duct Soft Tissue Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A mesenchymal neoplasm that arises from the extrahepatic bile ducts and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential.

**Synonyms:** - Benign Extrahepatic Bile Duct Soft Tissue Tumor - Benign Soft Tissue Neoplasm of Extrahepatic Bile Duct - Benign Soft Tissue Neoplasm of the Extrahepatic Bile Duct - Benign Soft Tissue Tumor of Extrahepatic Bile Duct - Benign Soft Tissue Tumor of the Extrahepatic Bile Duct