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Figures
Figure 1: Numerous erythematous plaques with central keratotic plugs on the upper back of a 58-year-old woman.
Figure 2: Histopathologic image of one of the lesions (Elastica van Gieson stain, original magnification ×40), showing elimination of collagen bundles through the dermis into the epidermis. The central crusted keratotic plug contains keratin, cellular debris and collagen fibres.