Pathomorphology was suggestive of HCC, but immunohistochemistry showed negative results for glypican-3 and heat shock protein 70, focally positive results for glutamine synthetase (GS), and cluster of differentiation 34 (CD34) did not demonstrate diffuse hepatic sinusoidal capillarization (Fig. 2). This evidence concerns the gene CD34 and hepatocellular carcinoma.