Abstract
A 70-year-old woman was diagnosed poorly differentiated hepatocellular carcinoma (HCC), lymphocyte rich. In this case, programmed cell death 1 expression was observed. Immune checkpoint inhibitor treatment may be effective in such cases, although there have been no reports of their use for poorly differentiated HCC, lymphocyte-rich.
Key Clinical Message: Pathological study in a case of poorly differentiated hepatocellular carcinoma, lymphocyte-rich suggested that immune checkpoint inhibitor may be effective. The histological type is an important factor in determining treatment choices.
Key words: hepatocellular carcinoma, hepatocellular carcinoma, lymphocyte rich, lymphoepithelial hepatocellular carcinoma, Immune checkpoint inhibitors, programmed cell death ligand 1