title: Contact allergic dermatitis from melamine formaldehyde resins in a patient with a negative patch-test reaction to formaldehyde.
abstract: Melamine paper is a basic material used in the furniture industry for home and office interiors. Contact allergic dermatitis from melamine formaldehyde resins (MFRs) should be considered in patients who work on melamine paper impregnation lines. We report a case of a 28-year-old female plywood worker who developed eczema on the dorsal side of her hands and wrists after 2 years of working on the melamine paper impregnation line. She had a relevant positive patch-test reaction to MFR, with a negative reaction to formaldehyde. Contact dermatitis due to MFR is not common, and it is usually related to products that are not fully cured or to close contact with intermediate products on the assembly line. Formaldehyde release from MFR can explain most of the positive responses. To our knowledge, this is the first report of MFR contact allergic dermatitis in a worker on a melamine paper impregnation line.
authors.affiliation: Servicio de Dermatología, Complejo Hospitalario Universitario de Santiago, Facultad de Medicina, Santiago de Compostela, Spain. mejaime@usc.es
authors.forename: Juan
authors.initials: J
authors.lastname: García Gavin
authors.forename: Manuel
authors.initials: M
authors.lastname: Loureiro Martinez
authors.forename: Virginia
authors.initials: V
authors.lastname: Fernandez-Redondo
authors.forename: Maria-José
authors.initials: MJ
authors.lastname: Seoane
authors.forename: Jaime
authors.initials: J
authors.lastname: Toribio
mesh_terms: D000328:Adult; D017449:Dermatitis, Allergic Contact / Q000175:diagnosis / Q000209:etiology*; D009783:Dermatitis, Occupational / Q000175:diagnosis / Q000209:etiology*; D005260:Female; D005557:Formaldehyde; D006229:Hand Dermatoses / Q000139:chemically induced*; D006801:Humans; D007374:Interior Design and Furnishings; D010209:Paper; D010328:Patch Tests / Q000379:methods; D012117:Resins, Synthetic / Q000009:adverse effects*; D014227:Triazines / Q000009:adverse effects*
chemical_list: D012117:Resins, Synthetic; D014227:Triazines; C504353:melamine formaldehyde; D005557:Formaldehyde