Hepatocellular carcinoma (HCC) is a type of liver cancer that originates in the liver cells, known as hepatocytes. It is the most common form of primary liver cancer and often occurs in individuals with chronic liver diseases, such as hepatitis B or hepatitis C infections, and cirrhosis. Symptoms of HCC may include weight loss, abdominal pain, and jaundice, which is a yellowing of the skin and eyes. Diagnosis typically involves imaging tests like ultrasound or CT scans, and treatment options may include surgery, chemotherapy, or targeted therapies, depending on the stage of the cancer.