Fig. 4.
Percentage of CK17- and CK13-positive cases in normal oral epithelium, leukoplakia, and OSCC. The percentages of CK17-positive cases were 0/10 (0 %), 35/74 (48.6 %), 18/34 (54.5 %), and 101/105 (96.2 %), respectively, while the percentages of CK13-positive cases were 10/10 (100 %), 52/74 (70.3 %), 11/34 (32.4 %), and 3/105 (2.9 %), respectively, in normal oral epithelium, hyperplastic leukoplakia, dysplastic leukoplakia, and OSCC