immunohistochemical localization of carcinoembryonic antigen ( cea ) , epithelial membrane antigen ( ema ) and epidermal growth factor ( egf ) were investigated in 14 cases of non-dysplastic epithelium , 66 cases of dysplastic epithelium and 16 cases of squamous cell carcinoma , and compared with the morphometric results .
C0334044
dysplastic
C0878500
dysplastic epithelium