An interesting fact about liver cancer is that there are two basic forms, which are primary and metastatic liver cancer. Primary liver cancer starts in the liver while the metastatic type is associated with cancers found in other parts of the body that spread to the liver, states the University of Texas MD Anderson Cancer Center.
There also are different types of primary liver cancer, including hepatocellular carcinoma, hepatoblastoma and angiosarcoma. Hepatocellular carcinoma involves the hepatocyte cells, and angiosarcoma is cancer that starts in the liver's blood vessels. Hepatoblastoma is a liver cancer type that commonly affects children.
Some interesting statistics about liver cancer is that there will be approximately 35,600 new diagnosed cases in the United States in 2015, according the American Cancer Society. Every year, there are more than 700,000 new cases of this cancer type reported worldwide. The number of people, who die from liver cancer yearly in the world, is more than 600,000, states the American Cancer Society. The occurrence of liver cancer is more prevalent in men than in women.
Risk factors associated with liver cancer are chronic hepatitis B or C viral infections, excessive alcohol consumption, being obese and liver cirrhosis, notes Texas Oncology. Nevertheless, the exact cause of liver cancer is not entirely known. In the early stages of liver cancer, there may be no symptoms. It is in the later stages that symptoms, such as jaundice, abdominal pain and loss of appetite, may be present.