Tumors of the Dermis. a Stain for p16 in most of the bowenoid lesion. The dermal tumor is negative. ×100. b Strong nuclear staining for p63 protein in the whole thickness of the dysplastic epithelium. The dermal tumor is negative. ×100. c Diffuse cytoplasmic staining for CD68 in spindle cells of the dermal neoplasm. The bowenoid lesion is negative. ×100. d Staining for CD10 at the cellular membrane in all the cells of the dermal tumor, without expression in the epidermal lesion. ×100. Combined Papillated Bowen Disease and Clear Cell Atypical Fibroxanthoma. Suárez-Vilela D, Izquierdo-García F, Domínguez-Iglesias F, Méndez-Álvarez JR - Case reports in dermatology (2010). Not Altered. CC.