Abstract
Occupationally related psoriasis has been most associated with frictional or pressure trauma, and an isomorphic (Koebner) response leading to lesions of psoriasis. We present a patient who developed an eczematous eruption that evolved into lesions typical for psoriasis. Although contact dermatitis was initially suspected by his dermatologists, patch testing with available standard allergens was negative on three separate occasions. More extensive patch testing confirmed contact allergy to phenol formaldehyde resin, which was occupationally relevant. The case illustrates that allergic contact dermatitis should be considered as a possible occupational factor, in addition to friction, that could precipitate lesions of psoriasis.
Get full access to this article
View all access options for this article.