Actinic porokeratosis

Annular lichen planus‐like keratosis: clues to pre‐existing porokeratosis

“…Porokeratosis is clinically characterized by a sharply demarcated, atrophic, annular lesion with a distinct keratotic edge. Dermoscopically, a thin peripheral whitish rim is distinctive and histopathologically this corresponds to the cornoid lamella 6 . In our case, instead of a white track, dermoscopy revealed only gray granules forming an annular pattern.…”