malignant liver tumor incidence/prevalence measurement hepatocellular carcinoma incidence/prevalence measurement 2014-11-03T13:20:43Z Any measurement in which the number of individuals in a study population that display hepatocellular carcinoma at a point in time or develop hepatocellular carcinoma within a determined period of time are compared to the total number of individuals in the study population. Often expressed as a percentage but could be expressed as a ratio. Hepatocellular carcinomas (HCC) are primary malignant neoplasms of hepatocytes, epithelial liver cells which perform the functions of the liver such as transformation of carbohydrates, synthesis of cholesterol, bile salts and phospholipids, detoxification of exogenous substances, etc. HCC is often associated with cirrhosis and hepatitis B and/or C infection. CMO:0002603 JSmith MESH:D006528 clinical_measurement_ontology malignant hepatocellular carcinoma incidence/prevalence measurement