左侧的肿瘤具有与胆管癌基本相同的腺体表现。肝癌可具有肝细胞分化和胆管分化。胆管癌不产生胆汁，但这些细胞生成粘蛋白，并很难与活检或针吸标本的转移性腺癌相区分。
The carcinoma at the left has a glandular appearance that is most consistent with a cholangiocarcinoma. A liver cancer may have both hepatocellular as well as cholangiolar differentiation. Cholangiocarcinomas do not make bile, but the cells do make mucin, and they can be almost impossible to distinguish from metastatic adenocarcinoma on biopsy or fine needle aspirate.
