In summary, neuroendocrine carcinoma of the extrahepatic biliary tracts is ... could improve the prognosis of this highly malignant neoplasm. A written informed consent was obtained from the ...

Bile duct cancer, or cholangiocarcinoma, is a malignant tumour of either the bile ducts within the liver (intrahepatic), or those leading from the liver to the small intestine (extrahepatic).