The HCC component was positive for α-fetoprotein (Fig. 3A), Hep Par 1, and glypican 3 and negative for vimentin, synaptophysin, and chromogranin A. The SCC component was positive for synaptophysin, chromogranin A, and vimentin (Fig. 3B–D). Here, CHGA is linked to hepatocellular carcinoma.