Pityriasis rubra pilaris
Pityriasis Rubra Pilaris (PRP) is a chronic rare skin disease characterized by reddish orange color of the skin, and scaling, flaky skin.
The disease affects persons of all ages, races, and nationalities, and it exhibits a variable clinical course. Both sexes are affected equally.
Both a familial (inherited) and an acquired form of the disease have been found. The familial type starts early in childhood whereas the acquired type may occur at any age.
The disease is rare but no exact incidence has been reported. The inherited form of the disorder is persistent throughout life. The acquired disease usually shows remissions and exacerbations but some patients continue to have trouble for years.
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