Fig. 1.

(A) A contrast-enhanced CT image demonstrates a poorly circumscribed, heterogeneously enhancing mass (black arrowhead) in the inferior segment of the right hepatic lobe. Metastatic lymphadenopathy (black arrows) is also seen in the retroperitoneum. (B) A low-power microscope field of a liver biopsy specimen demonstrates the presence of an adenocarcinoma showing glandular or tubular structures within a sclerotic stroma (hematoxylin and eosin (H & E) staining, ×40). (C) A high-power field shows that the tumor cells have round nuclei, prominent nucleoli, and abundant cytoplasm with vacuolation (H & E staining, ×200).