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Hematoxylin and eosin staining of basal cell carcinoma (a) and squamous cell carcinoma of human skin (c). A moderate immunostaining with 14F7 Mab was detected on basal cell carcinoma mostly located in the center of the typical lobules and columns of malignant basaloid cells (b). The squamous cell carcinoma showed an intense reaction becoming into more intense near the central keratinization and horn pearl formation (d). Black bar =100 μm.
