LICHEN PLANUS ACTINICUS
In this variant of lichen planus, lesions occur in sun-exposed areas. It is most common in the Middle East, East Africa and India.
The skin lesions predominate in the sun-exposed areas, especially the dorsal of the hands and the face. Annular, macular or lichenoid lesions may be seen. There often is a significant amount of postinflamatorry inflammation.
Photoprotection is key. See sunscreen for more information. Topical steroids are usually prescribed. Prevention of new lesions and reduction inflammation are goals of treatment. If the primary disease process is controlled, the pigmentation often takes months to fade.
Hyperpigmented annular plaques of the scalp and violaceous papules on the hands. JAMA Derm 2015;151;1121
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