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  • Title: Pediatric lichen planus pigmentosus possibly triggered by mercury dental amalgams.
    Author: Belhareth K, Korbi M, Belhadjali H, Soua Y, Moussa A, Youssef M, Zili J.
    Journal: Pediatr Dermatol; 2020 Mar; 37(2):375-376. PubMed ID: 31876002.
    Abstract:
    Lichen planus pigmentosus is uncommon in childhood and its treatment is often challenging. We report a case of cutaneous lichen planus pigmentosus in a 10-year-old boy, without oral mucosal involvement, two months after an amalgam dental restoration. The diagnosis was based on the histopathological examination of a skin biopsy, the positive patch test to mercury, and the improvement after amalgam removal. Our case report suggests that metal allergy may play a role, and amalgam replacement may be followed by clinical improvement.
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