Distinctive imaging features of liver metastasis from gastric adenocarcinoma with enteroblastic differentiation: A case report

Figure 4 Histopathological images of the surgical specimen. A: Atypical cells with clear cytoplasm were observed, proliferating in a tubular to papillary pattern (hematoxylin and eosin staining, magnification × 25); B: Higher magnification of the same area as in Figure 4A (hematoxylin and eosin staining, magnification × 200); C: Immunohistochemistry demonstrated that the tumor cells were positive for alpha-fetoprotein; D: Elastica Van Gieson staining revealed invasion of the portal vein (arrow); E: Elastica Van Gieson staining also revealed invasion of the right hepatic vein of the liver parenchyma surrounding the tumor (arrow). RHV: Right hepatic vein.