Fig. 2

a & b Histopathology analysis showed the hepatic sinusoids were markedly expanded by the selective proliferation of atypical lymphocytes (a: magnification × 100 and b: magnification × 200). c. The neoplastic cells were large in size with round to oval-shaped nuclei and scant cytoplasm (magnification × 400). d. The tumor cells were positive for CD20 (magnification × 200). e. CD31 immunohistochemical staining highlights the intravascular growth pattern of tumor cells (magnification × 200). f. The neoplastic cells were positive for EBER by in situ hybridization