Fig. 4From: Ectopic pancreatic adenocarcinoma in Meckel’s diverticulum: a case reportImmunohistochemical findings for the resected cancer tissue. Photomicrographs showing a CK7 positivity; b CK20 negativity; c CDX2 negativity; and d CA19-9 positivity. CK cytokeratin, CDX2 CDX2 gene, CA19-9 carbohydrate antigen 19-9Back to article page