How is allergic contact dermatitis from nickel distinguished from atopic dermatitis (eczema)?

Updated: Mar 13, 2019
  • Author: Brian S Kim, MD, MTR, FAAD; Chief Editor: William D James, MD  more...
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Answer

Allergic contact dermatitis from nickel in infants and children is sometimes difficult to distinguish from AD. A central area of dermatitis on the chest from nickel snaps in undershirts or around the umbilicus from snaps in jeans is helpful for making the diagnosis, although a dermatitic eruption may occur as an id reaction in other areas, particularly the antecubital fossae. Xerosis and facial involvement are absent. AD usually starts earlier than contact dermatitis.


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