Figure 1.
Staining pattern of normal buccal mucosa. A. Normal buccal mucosa, H&E X200; B. High immunoreactivity of β-catenin in normal buccal mucosa X200; C. High immunoreactivity of E-cadherin in normal buccal mucosa X200; D. Absence of immunostaining for vimentin in normal squamous epithelium of buccal mucosa X200.