title: Erythema multiforme-like lesions revealing allergic contact dermatitis to exotic woods.
abstract: We report a 45-year old man who developed maculopapular exanthema on the inferior cervical folder, axillae and umbilicus, as well as erythema multiforme-like lesions on the wrists after the introduction in his work of pao ferro (Machaerium scleroxylon). Patch tests were positive to pao ferro and ebony. This case highlights the importance of patch tests for the confirmation of the culprit agent in occupational dermatoses and also to identify other occupational allergens that the patient should avoid. Tropical woods contain quinones that could explain the possible cross-reactions between woods belonging to different families.
authors.affiliation: Department of Dermatology and Venereology, Hospital de São João EPE, Porto, Portugal. ocsferreira@gmail.com
authors.forename: Olga
authors.initials: O
authors.lastname: Ferreira
authors.forename: Maria João
authors.initials: MJ
authors.lastname: Cruz
authors.forename: Alberto
authors.initials: A
authors.lastname: Mota
authors.forename: Ana Paula
authors.initials: AP
authors.lastname: Cunha
authors.forename: Filomena
authors.initials: F
authors.lastname: Azevedo
mesh_terms: D000485:Allergens / Q000009:adverse effects*; D017449:Dermatitis, Allergic Contact / Q000209:etiology*; D003875:Drug Eruptions / Q000209:etiology*; D004890:Erythema / Q000209:etiology; D005076:Exanthema / Q000209:etiology; D007887:Fabaceae / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure / Q000009:adverse effects; D010328:Patch Tests; D014934:Wood / Q000009:adverse effects*
chemical_list: D000485:Allergens