Expression of Potential Dermal Progenitor Cell Markers in the Tumour and Stroma of Skin Adnexal Malignant and Benign Tumours

Figure 5

Ephrin B2C expression profile: hair follicle with precortical (black arrow) and inner root sheath staining (a). Sclerosing BCC with positive cells at the tumour-stroma interaction (TSI) site within the core of the tumour together with plasma cells, infiltrating and surrounding BCCs as well (b). Infiltrating BCC (c) and adenoid BCC (d) are mainly negative except for a few cells at the tumour-stroma interaction (TSI) site. Early porocarcinoma (e) and late porocarcinoma showed both expressions (f). Similar results for sebaceous tumours: sebaceous adenoma (g) is weakly positive in contrast to an undifferentiated sebaceous gland carcinoma (h). Pilomatricoma with positive transitory cells (i).

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