Therefore, lack of K10 expression in oral lichen planus-affected epithelial cells as well as Civatte bodies demonstrated in the present study indicates that epithelial cell resources for Civatte bodies are not related to orthokeratotic dysplasia cells or dyskeratotic cancer cells, both of which are positive for K10 but not for K13 or K1921. This evidence concerns the gene KRT10 and oral lichen planus.