Without the exception, the neoplastic cells of all analyzed histopathological types of BCC were expectedly CD34 negative, which is concordant with the fact that well differentiated dermatologic neoplasms retain the potential to differentiate in boundaries of cytomorphology of originating cell type, displaying the same absence of CD34 expression as the cells of interfollicular epidermis in all regions of analyzed skin samples [14,16,17,21]. This evidence concerns the gene CD34 and skin basal cell carcinoma.