Immunohistochemistry performed showed diffuse positivity in the tumor cells for OCT-3/4 of moderate to strong intensity; patchy cytoplasmic granular staining for alpha-fetoprotein (AFP) was noted mostly in the solid areas—focal cytoplasmic granular positivity for alpha-methylacyl-CoA racemase (AMACR) and focal membranous positivity for CD10—and were negative for PAX-8, CD117, GATA-3, Vimentin, and CD30 (Figures 3 and 4). This evidence concerns the gene AMACR and neoplasm.