Extrahepatic Bile Duct Squamous Cell Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A carcinoma that arises from the extrahepatic bile ducts. It is composed entirely by malignant squamous epithelial cells.

**Synonyms:** - Bile Duct Squamous Cell Carcinoma - Squamous Cell Bile Duct Carcinoma - Squamous Cell Carcinoma of Bile Duct - Squamous Cell Carcinoma of the Bile Duct