Liver Cancer

What is Liver Cancer?

There are two main kinds of liver cancer. Heptoma and cholangiocarcinoma. Heptoma is cancer of the hepatocytes. (The main functioning liver cell). Hepatoma is primary liver cancer. Hepatoma usually grows in the liver as a ball-like tumor, invading the normal tissue surrounding it. A history of infection with the hepatitis B virus puts individuals at risk of developing heptoma.

Cancer of the bile duct cells is called cholangiocarcinoma. Cholangiocarcinoma originates in the bile ducts and is often caused by infestation with the liver fluke Clonorchis (a parasite). The cancer grows along the bile ducts in sheets or lines, and is hard to find on X-ray studies.

Most cases of liver cancer are actually cancers that started in another organ. This is called metastases. Because of its very high blood flow and many biological functions, the liver is one of the most common places for metastases to grow. Tumors that originally arise in the colon, pancreas, stomach, lung or breast can spread to the liver.

Liver cancer is much more prevalent in many of the developing countries than in the industrialized world. Its incidence is highest in subSaharan Africa, China, southern Asia, and Japan. Japan is the exception of the industrialized countries. China accounts for about 45% of the world's cases.

What Causes or Increases Risk for Liver Cancer?

Once cause of liver cancer is exposure to vinyl chloride. Other causes of liver cancer are unknown. However certain risk factors have been identified. The risk factors are: Chronic Hepatitis, Cirrhosis of the liver and liver flukes (parasites).

Treatments for Liver Cancer?

Treatments will vary according to the individual. Some of the possible treatments are: surgery, liver transplantation, chemotherapy and radiation.

Liver transplantation is the replacement of one liver with another.

Radiation therapy is the use of x rays or other high-energy rays to kill cancer cells and shrink tumors.