Figures legend:
Figure 1: a warty mass with a keratotic surface of measured 2 cm on the left leg.
Figure 2: Proliferation of papillary and tubular structures bordered by significant epidermal hyperplasia forming lateral beaks (a, HEx25) (b, HEx100).
The papillae are lined with a bistratified epithelium without atypia and their axes are very rich in plasmocytes (c, HEx25) (d, HEx200)