What is the definition or description of: liver cancer?

Liver Cancer: Cancer of the liver can be a primary cancer (hepatocellular cancer) & is more common in those exposed to hepatitis b or hepatitis c or cirrhosis from other causes. It can also be a secondary cancer, spread from another site such as colon, stomach, lung, etc. Some liver cancers are treated with surgery & some with chemotherapy, radiofrequency ablation, intrarterial injection, etc.

Two types: A cancer arising in the liver from the cells originating in the liver is called a primary liver cancer; cancers arising in the liver but from cells originating from another cancer (say breast) is considered a secondary liver cancer. The distinction is important because treatment will vary depending upon primary or secondary.