Liver cancer contains intrahepatic cholangiocarcinoma, while cholangiocarcinoma contains intrahepatic cholangiocarcinoma and extrahepatic cholangiocarcinoma, etc. The difference lies in the source, symptoms and prognosis. Liver cancer is mainly categorized into primary liver cancer and secondary liver cancer, which can be further subdivided. 1. Primary liver cancer is one of the common digestive system tumors in China and one of the malignant tumors with the highest mortality rate. It can be divided into: hepatocellular carcinoma, intrahepatic cholangiocarcinoma, mixed hepatocellular carcinoma and so on according to the histologic morphology under microscope. 2. Secondary hepatocellular carcinoma: including metastatic hepatocellular carcinoma and metastatic hepatic sarcoma. Primary tumors are mainly colorectal cancer, gastric cancer, pancreatic cancer and gastric and intestinal smooth muscle sarcoma. Bile duct cell carcinoma is divided into intrahepatic cholangiocarcinoma, hepatoportal cholangiocarcinoma, extrahepatic cholangiocarcinoma and so on according to the site of incidence, i.e. one of the types (intrahepatic cholangiocarcinoma) belongs to liver cancer. The main type of hepatocellular carcinoma is hepatocellular carcinoma, which is a malignant tumor of hepatocellular origin, and its main symptoms are abdominal pain, pressure pain in the liver area, and loss of appetite, etc., while the main type of cholangiocellular carcinoma is hepatoportal cholangiocarcinoma, and its main symptom is jaundice. In addition, the prognosis of hepatocellular carcinoma is often better than that of cholangiocarcinoma, and some researches claim that the 5-year survival rate of early cholangiocarcinoma patients after surgery is only 15%~20%. If you are suspected or diagnosed with hepatocellular carcinoma or cholangiocarcinoma, it is recommended to go to regular hospitals to evaluate your condition and follow the doctor’s instructions for treatment, so as to avoid delaying your condition.