CEACAM8 and dysplasia: In addition, quantification of double CD15- and CD66b-positive cells verified higher levels of double-positive cells located in the epithelium and stroma of pathological compared with normal biopsies (P = 0.001 and P = 0.002, respectively; Figure 6, F and G), but in this case, the proportion of CD15+CD66b+ cells with respect to CD15+ cells remained in the high range in association with dysplasia (Figure 6H).