umls-concept:C2239176 | skos:definition | MSH: A primary malignant neoplasm of epithelial liver cells. It ranges from a well-differentiated tumor with EPITHELIAL CELLS indistinguishable from normal HEPATOCYTES to a poorly differentiated neoplasm. The cells may be uniform or markedly pleomorphic, or form GIANT CELLS. Several classification schemes have been suggested.,NCI: A type of adenocarcinoma and the most common type of liver tumor.,CSP: primary malignant neoplasm of epithelial liver cells; it ranges from a well-differentiated tumor with epithelial cells indistinguishable from normal hepatocytes to a poorly differentiated neoplasm; the cells may be uniform or markedly pleomorphic, or form giant cells; associations exist with chronic hepatitis B virus infection, some types of cirrhosis, and hepatitis C virus infection.,NCI: A malignant neoplasm arising from hepatocytes.,NCI: A malignant tumor that arises from hepatocytes. Hepatocellular carcinoma is relatively rare in the United States but very common in all African countries south of the Sahara a | lld:umls |