Occupational immunological contact urticaria

Vega, J. et al., Occupational immunologic contact urticaria from pine processionary caterpillar (Thaumetopoea pityocampa) experience in 30 cases, Contact Dermatitis, 50, 60, 2004. 

Occupational airborne allergic contact dermatitis Occupational airborne phototoxic contact dermatitis Occupational airborne photoallergic contact dermatitis Occupational airborne (immunological and/or non immunological) contact urticaria... 

Jones 1998). Other offending agents responsible for occupational airborne immunological contact urticaria are cosmetics, fruit, vegetables, animal hair, ammonium persulphate, anhydrides (Tarvainen et al. 1995), etc. 

Exposure to chloropalatinates can give rise to immunologic contact urticaria, accompanied by asthma and rhinitis ( platinosis ). Cases of allergic contact dermatitis due to occupational exposure to platinum or platinum compounds were first reported in the 1950s (Levene 1971). In a more recent study (Baker et al. 1990), 28% of former employees had a positive prick test to platinum salts. They were not patch tested and the dermatitis reported could, in fact, have been an expression of contact urticaria. 

Tarvainen K, Kanerva L, Jolanki R, Estiander T (1995a) Occupational dermatoses from the manufacture of plastic composite products. Am J Contact Dermat 6 95-104 Tarvainen K, Jolanki R, Estiander T, Tupasela 0, Pfaffli P, Kanerva L (1995b) Immunologic contact urticaria due to airborne methylhexahydrophthalic and methyl tetrahydro-phthalic anhydrides. Contact Dermatitis 32 204-209... 

Occupational Airborne (Immunological and/or Nonimmunological) Contact Urticaria... 

Many different pharmaceutical products have been reported to cause contact urticaria, mostly of the immunologic type. Sometimes, oculorhinitis, respiratory symptoms or even anaphylaxis can develop. Because of the powdered nature of several pharmaceutical products, the causative agent may induce cutaneous symptoms by direct contact or through an airborne mechanism. The most frequent agents causing contact urticaria in this occupational group are latex and medicaments, especiaUy antibiotics [218, 242-244] (Table 6). 

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