Original Article
Copyright ©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Apr 28, 2013; 19(16): 2456-2465
Published online Apr 28, 2013. doi: 10.3748/wjg.v19.i16.2456
Figure 3
Figure 3 Illustration of the comparative immunohistochemical stains in 3 representative cases. The 3 representative cases include tubular type cholangiocarcinoma (CCA) (Tub CCA), papillary type CCA (Pap CCA) and hepatocellular carcinoma (HCC). Immunopositivity of cytokeratin 7 (CK7), annexin A1 (ANXA1), hepatocyte paraffin 1 (HepPar1) and alpha-fetoprotein (AFP) appeared as brown cytoplasmic staining of tumor cells, while positivity to carbohydrate antigen 19-9 (CA19-9) appeared as cytoplasmic and luminal staining of tumor (magnification, × 40). Noted that CCA are CK7+/CA19-9+/ANXA1+ and HCC is HepPar1+/AFP+/ANXA1-. -: Negative result; +: Positive result.