KRT5 and neoplasm: Histologically, the dermis was expanded by an expansive and unencapsulated multilobulated nodule composed of cuboidal to spindle basaloid cells arranged in variably-sized cytokeratins (CK) AE1-AE3, CK 5/6 and CK 34 beta E12, p63-positive winding cords with a characteristic palisade arrangement of neoplastic cells in the periphery of the tumor.