What is the Definition of Gallbladder Cancer?
Cancer of the gallbladder is a disease in which cancer cells are found in the tissues of the gallbladder. The gallbladder is a pear-shaped organ that lies just under the liver in the upper abdomen. Cholangiocarcinoma is an adenocarcinoma (carcinoma derived from glandular tissue or in which the tumor cells form recognizable glandular structures) arising from the epithelium (cellular lining) of the intrahepatic (within the liver) bile ducts.