Sources of nickel allergy can be missed, as in our unusual case of contact dermatitis to nickel.
From the Department of Dermatology, University Hospital of Geneva, Switzerland.
Address reprint requests to Sandrine Quenan, MD, University Hospital of Geneva, 4 Rue Gabrielle-Perret-Gentil, 1211 Geneva, Switzerland. E-mail: firstname.lastname@example.org.
The authors have no funding or conflicts of interest to declare.