We report 2 cases of relapsing nummular dermatitis according to mercury sensitivity, which was confirmed by patch testing. Removal of the amalgam from dental metal alloys markedly improved their skin eruptions. One of the patients, a dentist, experienced exacerbation of the eruptions on his lower legs after handling dental amalgam. Hypersensitivity to haptens such as metals is possibly involved in, at least in some patients, the pathogenesis of nummular dermatitis. (J Am Acad Dermatol 2000;43:383-5.)Le texte complet de cet article est disponible en PDF.
| This supplement is made possible through an educational grant from Ortho Dermatological to the American Academy of Dermatology.
| Reprint requests: Atsuko Adachi, MD, Department of Dermatology Hyogo prefectural Kakogawa Hospital 770-1, Awazu, Kakogawa-cho Kakogawa 675-8555, Japan. E-mail: firstname.lastname@example.org