Expression of cell adhesion molecule CD44 in gastric adenocarcinoma and its prognostic importance

Figure 1 Representative example demonstrating the immunohistochemical staining of CD44 molecule in gastric adenocarcinoma tissue. A: Negative CD44 staining in adeno-carcinoma glands and positive staining in the background lymphocytes (× 40); B: Membranous expression of CD44 in carcinoma cells with the stained lymphocytes as internal positive control in the background (× 40); C: Positive membranous staining of CD44 in carcinoma cells (× 40); D: Membranous and cytoplasmic expression of CD44 in carcinoma cells (× 40).