Kerosis and Comedos Without Prominent Elastosis in Favre–Racouchot Disease

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Abstract
Favre-Racouchot disease often is reported to be characterized by the association of cysts and comedos with prominent solar elastosis. Our histological study of patients who rarely exposed themselves to solar irradiation revealed no association between these signs. We detected only the presence of kerosis, as well as closed and open comedos. There were no true cysts. Actinic damage to the epidermis was absent, and solar elastosis was moderate to discrete. Therefore, the characteristic follicular alterations in Favre-Racouchot disease appear to be independent of and not secondary to solar elastosis.

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