KRT17 and lichen planus: The number of evaluatable K17+ Civatte bodies from the 56 oral lichen planus cases (biopsy specimens) containing Civatte bodies totalled 481, while frequency based on location was 254 (52.8%) in type A (basal zone); 119 (24.7%) in type B (intraepithelial), and 108 (22.5%) in type C (lamina propria) (Fig. 2, upper row).