Diseases for Which Patch Testing Is Recommended: Patients Who Should Be Investigated

  • Jean-Marie Lachapelle


Allergic contact dermatitis (ACD) is observed in daily life by the practicing dermatologist. Note that in the vast majority of cases, its clinical presentation is an eczematous reaction. ACD is therefore synonymous with allergic contact eczema.

The pathomechanisms involved in ACD are explained in Sect. 1.3.2.

The clinical picture of ACD, eczematous in most cases, varies depending on its location and duration. In most instances, acute eruptions are characterized by erythema and papules, vesicles (often coalescent), or bullae, depending on the intensity of the allergic response. In severe cases, this can lead to abundant oozing. In case of acute ACD occurring in certain areas of the body, such as the eyelids, penis, and scrotum, erythema and edema usually predominate rather than vesiculation.


Contact Dermatitis Patch Testing Allergic Contact Dermatitis Erythema Multiforme Hand Eczema 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Jean-Marie Lachapelle
    • 1
  1. 1.Department of DermatologyCatholic University of LouvainBrusselsBelgium

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