label: porokeratosis plantaris palmaris et disseminata
label_lc: porokeratosis plantaris palmaris et disseminata
description: "Porokeratosis plantaris palmaris et disseminata (PPPD) is a rare form of porokeratosis occurring mainly in adolescence and characterized by small pruritic or painful keratotic papules that first appear on the palms and soles, and may gradually become generalized."