Dermatology in the workplace

Dermatoses related to the industrial environment are costly and underreported. Contact dermatitis is due to irritants in 75 percent of cases and to true allergy in only 25 percent. Differences between these two types of dermatitis include a longer induction period for allergy. Patch testing may be useful for diagnosis of allergic contact dermatitis. Photoallergy, chloracne, occupational leukoderma and neoplasia are special occupational problems. A precise history and physical examination as well as a visit to the plant are essential elements in evaluating the patient.