Punched-out porokeratosis. A histological variant of disseminated superficial actinic porokeratosis.
This paper describes an unusual histological variant of disseminated superficial actinic porokeratosis in which there were areas of full-thickness coagulative epidermal necrosis. The diagnosis of porokeratosis was confirmed with a further biopsy, which demonstrated a coronoid lamella and some underlying basal cell liquefaction. The significance of the pathology is discussed.
D000078404:Epidermal Cells; D004817:Epidermis / Q000473:pathology; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D007642:Keratosis / Q000145:classification / Q000473:pathology*; D008875:Middle Aged