[Interpretation and relevance of patch testing: false-positive and false-negative test reactions, compound allergy, cross-sensitivity].
This chapter reviews pitfalls and mistakes in patch testing. Most sources of false-positive and false-negative reactions are indicated and analysed. Cross-sensitivity among allergens is discussed and compound allergy is debated. Keys for establishing relevance are indicated, for a better reading and interpretation of patch testing by practitioners (trainees or experienced dermatologists).
Le Coz
C J
CJ
Cabinet de dermatologie, 19, rue de l'Observatoire, 67000 Strasbourg, France. christophe.lecoz@wanadoo.fr
Sasseville
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D
D003429:Cross Reactions; D017449:Dermatitis, Allergic Contact / Q000175:diagnosis; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D010328:Patch Tests