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. 2020 May 1;13(5):1073–1080.

Figure 3.

Figure 3

Immunohistochemical features of the liver tumor. A: Arginase is expressed in hepatocellular carcinoma (HCC) areas and to a lesser extent in the ductules (small arrows) and ductular hepatocytes (wide arrows). Immunostain for arginase, ×40. B: HepPar1 is expressed in the ductules (DR) and ductular hepatocytes (arrows). Immunostain using HepPar1, ×60. C: CK7 expression. The ductules (DR) are strongly positive for CK7 and relatively weakly in the HCC cells. Immunostain for CK7, ×80. D: CK19 expression. CK19 is expressed in the ductules (DR). Immunostain for CK19, ×80. E: EMA is positive in the ductulular cells (DR) and bile ducts. Immunostain for EMA, ×80. F: EpCAM expression is seen in the ductular cells (DR) and bile ducts. Immunostain for EpCAM, ×80.