Figure 5From: Keratin 19 marks poor differentiation and a more aggressive behaviour in canine and human hepatocellular tumoursExamples of K19 positive human hepatocellular tumours. Immunohistochemical staining of K19 positive cells is shown in (A). HE staining, poorly differentiated HCC with a diffuse growth pattern and multiple mitotic figures (arrowheads) is shown in (B). Immunohistochemical staining for glypican-3 positive cells is shown in (C). Absence of immunohistochemical staining for HepPar-1 is shown in (D).Back to article page