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Dermatosis cenicienta (Eritema discrómico perstans) Ashy dermatosis (Erythema dischromicum perstans)

Dermatosis cenicienta (Eritema discrómico perstans) Ashy dermatosis (Erythema dischromicum perstans),Adriana López-Bárcenas,José Contreras-Ruíz,Mariso

Dermatosis cenicienta (Eritema discrómico perstans) Ashy dermatosis (Erythema dischromicum perstans)  
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Summary: The ashy dermatosis (AD) is an idiopathic acquired blue-gray macular hypermelanosis, widespread, that appears in healthy individuals. It was first described by Oswaldo Ramírez from El Salvador in 1957. The etiology of the AD remains unknown; its more common in Latin America and Asia, though cases have been described worldwide. It affects both sexes, most commonly dark skin individuals, in the second decade of the life. The AD has a chronic and asymptomatic course with a long evolution, with just cosmetic importance. It usually affects the trunk, arms, neck and face, rarely the exposed areas. The differential diagnosis must be done especially with the lichen planus pigmentosus and idiopathic macular eruptive pigmentation. The histopatology shows a lightly smoothed epidermis with areas of vacuolization and hyperpigmentation of the basal cell layer, with scanty perivascular limphocytic infiltration. There are many therapeutic options, but few of them are effective. The only treatment that apparently has been more effective is clofazimine using an average dose of 100 mg three times per week during three to five months.
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