Is hepatobiliary tumor usually malignant?

Hepatobiliary duct tumor is clinically called hilar cholangiocarcinoma, which belongs to common malignant tumor in biliary system. The cause of hilar cholangiocarcinoma is not clear at this stage, and it is mostly related to chronic inflammation of biliary tract, such as common choledochal cyst, biliary conscience tumor, sclerosing cholangitis, congenital cystic dilatation of bile duct, etc. These diseases will increase the probability of biliary cancer occurrence. There are many treatment methods for hilar cholangiocarcinoma. Patients can be relieved by surgery, radiotherapy and chemotherapy, biological therapy and traditional Chinese medicine under the guidance of doctors.