PMC3085431_01
(a) Dry whitish scaly lesion of the upper lip, clinically suspicious for actinic keratosis. (b) Complete clinical resolution of the upper lip lesion.
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fig1
Unexpectedly, a dry whitish scaly lesion of the upper lip, that resembled clinically an actinic keratosis, was also observed (Figure 1(a)). Blisters, erosions, and unexpectedly also the dry scaly lesion of the upper lip disappeared and no obvious relapse has been noted after a 4-month follow-up period (Figure 1(b)).
(a) The underlying dermis showed diffuse and marked mixed inflammatory infiltrate, consisting of lymphocytes and eosinophils, which focally involved the underlying epidermis. Additionally solar elastosis and vascular ectasia were seen (H & E; 100x). (b) Acantholysis and a diffuse cytological atypia of the epidermis, consisting of cells with enlarged, vesicular, focally hyperchromatic, nuclei (H & E; 200x).
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fig2
Histological examination showed acantholysis and a diffuse cytological atypia of the epidermis, consisting of cells with enlarged, vesicular, focally hyperchromatic, nuclei (Figures 2(a) and 2(b)). Solar elastosis and vascular ectasia were additionally seen (Figure 2(a)).