Figure 2.
Staining pattern of oral lichen planus. A. Oral lichen planus, H&E XX200; B. High immunoreactivity for β-catenin in squamous epithelium of a case of lichen planus X200; C. High immunoreactivity for E-cadherin in squamous epithelium of a case of lichen planus X200; D. Absence of immunostaining for vimentin in squamous epithelium in a case of lichen planus X200.