Figure 2.

(a) Histopathologic features and (b) immunohistochemical expression of EGFR in specimen from back lesion showing intense membranous staining of EGFR in the basal keratinocytes and throughout the upper epidermal layer.

(a) Histopathologic features and (b) immunohistochemical expression of EGFR in specimen from back lesion showing intense membranous staining of EGFR in the basal keratinocytes and throughout the upper epidermal layer.