Figure 1

Histological and morphological characteristics in the gastrectomy tissues. (A) The general pathology of this case was ulcer type. (B) There was a clear contrast between the normal gastric wall and tumor tissue. (C) The tissue of this patient showed typical immunological markers of gastric cancer: CEA, CK7 and CD20 were all positive and CDX2 was negative. (D) The expression of Her-2 was negative and p53 was weakly positive. (E) The expression of MLH1, MSH2, MSH6 and pMS2 was all positive (p MMR).