This herald patch is first noticeable as a small erythematous papule, but progresses into a round plaque or patch of 2 cm to 10 cm in diameter. PR is most often asymptomatic. Pruritic symptoms may ...

Plaque psoriasis occurs in up to 90% of psoriasis patients and is characterised by distinct round or oval plaques that are usually covered by silvery-white scales. Despite the availability of ...