[Contact urticaria with transition to protein contact dermatitis in a cook with atopic diathesis].

Protein contact dermatitis is a rare disease within the group of occupational dermatoses. However, it is of some importance to people in food handling occupations. Skin symptoms usually manifest as immediate-type reactions (type-I-reaction according to Coombs and Gell), but changes to type IV-reactions are known. This applies especially to people with atopic eczema who have contact to fish proteins. This can be derived from a case presented here and a few similar observations described in the literature.