case_images: PMC5465673_01
case_images: Well-defined brownish hyperkeratotic plaque with an erythematous rim located on the right lateral malleolus.
case_images: cde-0009-0069-g01.jpg
case_images: PMC5465673_01_cde-0009-0069-g01.jpg
case_images: f1
case_images: Physical examination revealed bilateral well-defined brownish hyperkeratotic plaques with an erythematous rim located on both lateral malleoli (Fig. 1).
case_images: Histopathological findings revealed papillated psoriasiform epidermal hyperplasia, compact hyperkeratosis, and mounds of parakeratosis with neutrophils. There was absence of a granular layer, with pale and vacuolated keratinocytes in the superficial epidermal layer and scattered necrotic keratinocytes. Hematoxylin-eosin. Original magnification x100.
case_images: cde-0009-0069-g02.jpg
case_images: PMC5465673_01_cde-0009-0069-g02.jpg
case_images: f2
case_images: Extravasated erythrocytes with dilated capillaries in the papillary dermis were also observed (Fig. 2, Fig. 3).