A rare case of multiple variants of porokeratosis in the same patient: The clue of dermoscopy for diagnosis and therapeutical update.

Porokeratosis (PK) consists of abnormal keratinization of the epidermis of uncertain etiology and was first described by Mibelli in 1893. Multiple clinical variants of porokeratosis are recognized. The following is a case of a young male who presented more than one form of PK simultaneously.