What is Hepatocellular Carcinoma?
Hepatocellular Carcinoma (HCC) is the fourth most common cancer in the world, and the second most common cause of cancer deaths worldwide. It is also known as hepatoma, primary liver cell carcinoma or primary liver cancer. HCC is cancer that arises from hepatocytes, the major cell type of the liver.
What causes HCC?
The most common risk factors for HCC are hepatitis B, hepatitis C, excessive alcohol consumption, and nonalcoholic fatty liver disease (NAFLD) leading to nonalcoholic steatohepatitis (NASH) and exposure to aflatoxins. Some genetic metabolic disorders are risk factors as well.
Cirrhosis is when the liver is scarred and its function is poor. This is mostly due to long-term exposure to hepatitis or alcohol.
What are the symptoms of HCC?
Symptoms include abdominal pain or tenderness (particularly in the right-upper part of the abdomen), an enlarged abdomen, right shoulder pain, bloating, decreased appetite, nausea, unexplained weight loss and unexplained fevers. Jaundice and swelling of the abdomen/legs can occur in more advanced liver cancer. Many patients with HCC do not develop symptoms until the advanced stages of the disease.
How is HCC diagnosed?
- A physical examination may show an enlarged, tender liver.
- Imaging tests such as ultrasound (US), computed tomography (CT), or magnetic resonance imaging (MRI) may reveal a mass in the liver.
- Blood tests of liver enzymes or function may show abnormal variations, or tumor markers such as serum alpha-fetoprotein (AFP) may be elevated.
- A liver biopsy may reveal cancer after a tissue sample is removed during surgery and examined under a microscope by a pathologist.
What are the stages of HCC?*
*While there are multiple staging systems for HCC, the one most commonly used is the Barcelona Clinic Liver Cancer (BCLC) staging and treatment system outlined here.
© June 2019