PMC5422737_01
Unilateral localized skin-colored-to-yellowish hyperkeratotic papules and plaques were distributed in a linear pattern on the right plantar surface of the patient.
cde-0009-0086-g01.jpg
PMC5422737_01_cde-0009-0086-g01.jpg
F1
A dermatologic examination revealed unilateral localized skin-colored-to-yellowish hyperkeratotic papules and plaques distributed in linear configuration on the right plantar surface (Fig. 1).
Histopathology showed epidermal hyperplasia with hypermelanization and hyperkeratosis without columns of parakeratosis or cornoid lamella. H&E. x10.
cde-0009-0086-g02.jpg
PMC5422737_01_cde-0009-0086-g02.jpg
F2
We performed a 4-mm punch biopsy, and the specimen showed epidermal hyperplasia with hypermelanization and hyperkeratosis without columns of parakeratosis or cornoid lamella (Fig. 2).