To better understand cholangiocarcinoma, it helps to understand the anatomy of the gallbladder and biliary tract.
The gallbladder is located in the upper right-hand portion of the abdomen. It is just under the ribcage. This hollow organ acts as a storage site for bile that is made in the liver. Bile flows into the upper intestine to aid digestion via a tube called the common bile duct.
- Jones BA, Gores GJ. Hepatobiliary malignancy. Clin Liver Dis. 1998 May;2(2):437-49, xi-xii. 
- Lazaridis KN, Gores GJ. Cholangiocarcinoma. Gastroenterology. 2005 May;128(6):1655-67. 
- Thongprasert S. The role of chemotherapy in cholangiocarcinoma. Ann Oncol. 2005;16 Suppl 2:ii93-6.