CK17 showed a negative expression in all cases of chronic cervicitis with significant increment in its expression with rising severity of the lesions from LSIL (10 cases out of 24 (41.7%)) (Figure 6) through HSIL (20 cases out of 28 (71.4%)) (Figure 7) to carcinomas (48 cases out of 53 (90.6%)) (Figure 8) had been recognized; (P˂0.001), (Table 6). This evidence concerns the gene KRT17 and carcinoma.