Figure 1

Co-expression of CEACAM7 and CEA in gastric carcinomas. A&B, Negative staining for CEACAM7 (A) and CEA (D) in a well differentiated gastric carcinoma. C&D, CEACAM7 (C) and CEA (D) staining was negative in the well differentiated area (cancer cells are ranged in gland-like form) and positive in the poorly differentiated area (brown color) of a gastric carcinoma. E&F, Positive staining for CEACAM7 (E) and CEA (F) in a poorly differentiated gastric carcinoma. A&B, C&D, and E&F are adjacent serial sections, respectively.(DAB as chromogen, counterstained with Harris hematoxylin, 50X).