Prevalence and trend of allergen sensitization in patients with nummular (discoid) eczema referred for patch testing: North American Contact Dermatitis Group data, 2001-2016.
Jonathan Ian SilverbergAlexander HouErin M WarshawHoward I MaibachDonald V BelsitoJoel G DeKovenKathryn A ZugJames S TaylorDennis SassevilleAnthony F FranswayVincent A DeLeoMelanie D PrattMargo J ReederAmber R AtwaterJoseph F FowlerMatthew J ZirwasJames G MarksPublished in: Contact dermatitis (2021)
NE is a heterogeneous disorder with distinct subsets of lesional distributions and a profile of relevant allergens, especially formaldehyde and formaldehyde releasers. Nearly one in four patients with NE had ACD, supporting the role of patch testing in patients with NE.