title: Rare allergens - hidden sources of allergens.
abstract: Acceleration of technical development results in growing difficulties to trace allergens. In this respect rare allergens as well as hidden sources of well-known allergens not infrequently cause persistence of allergic dermatitis. Examples are presented for di-ethyl-ester of maleic acid, hydroxylammoniumhydrochloride, N-methyl-p-aminophenol, 2-hydroxy-3-naphtoic acid o-aniside and N-acetoacetyl-benzylamide.
mesh_terms: D000328:Adult; D000485:Allergens; D000813:Anilides / Q000009:adverse effects; D002617:Chemical Industry; D003877:Dermatitis, Contact / Q000175:diagnosis / Q000209:etiology*; D009783:Dermatitis, Occupational / Q000175:diagnosis / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008298:Maleates / Q000009:adverse effects; D009281:Naphthalenes / Q000009:adverse effects; D010328:Patch Tests / Q000295:instrumentation
chemical_list: D000485:Allergens; D000813:Anilides; D008298:Maleates; D009281:Naphthalenes