Fig. 8From: Intraductal dissemination of ampullary carcinoma after pancreatoduodenectomyImmunohistochemical analysis revealed identical profiles between the original ampullary carcinoma (a–d) and the remnant tumor (e–h). Both sites were as follows: CK7-negative (a, e), CK20-positive (b, f), MUC1-positive (c, g), and MUC2-negative (d, h)Back to article page