Pruritic urticarial papules and plaques of pregnancy (PUPPP)--a case report.

Pruritic urticarial papules and plaques of pregnancy (PUPPP) is a rare dermatosis of unknown etiology that is most frequently seen in primiparas and twin/multiple pregnancies. The prognosis is favorable. We report a case of PUPPP in a primipara and review the clinical signs, differential diagnosis, possible etiologic factors, diagnosis, and therapy.