Brown Plaque with Ripple Pattern on Nasolabial Fold

A 12-year-old boy presented with a 6-month history of asymptomatic brown plaques on his nasolabial fold that had not disappeared despite repetitive cleansing with soap and water. Physical examination showed a ripple pattern area of brown plaque with well-defined borders on his nasolabial fold (Figure  1). No other body part was involved and there were no systemic symptoms. A punch biopsy taken from his nasolabial fold showed papillomatosis of the epidermis associated with irregular acanthosis and prominent lamellar hyperkeratosis with intracorneal orthokeratotic whorls.
Source: The Journal of Pediatrics - Category: Pediatrics Authors: Tags: Insights and Images Source Type: research