Fig. 5From: Gastric hepatoid adenocarcinoma resulting in a spontaneous gastric perforation: a case report and review of the literatureImmunohistochemical analysis. Tumor cells stained positive for (a) alpha-fetoprotein and (b) Sal-like protein 4, but were negative for (c) carcinoembryonic antigen, (d) synaptophysin, (e) chromogranin A, and (f) neural cell adhesion molecule. The scale bar indicates 50 μmBack to article page