In unaffected skin of the scalp, Nestin-positive cells are located at the outer root sheath cells of the hair follicle (Figure 4(a), Table 1) in the dermal interface of sebaceous glands (Figure 4(b)) and the tumour-stroma interaction site within the core of the tumour (TSI) as well as the invasive margin (IM) of the tumour of a nodular basal cell carcinoma (Figures 4(c) and 4(d)). This evidence concerns the gene NES and neoplasm.