Access Dermatology

Pityriasis rubra pilaris is a rare skin condition occurring in children and adults. The skin changes begin mostly on the scalp and spread to the rest of the body. Typically, erythematous, papulosquamous plaques and palmoplantar keratoderma can be seen. A characteristic histopathological sign is an alternation of orthokeratosis and parakeratosis. The most common differential diagnosis is psoriasis...