How is nummular dermatitis diagnosed?

Updated: Aug 16, 2019
  • Author: Jami L Miller, MD; Chief Editor: William D James, MD  more...
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Answer

The diagnosis of nummular eczema is made on the basis of observing the characteristic round-to-oval erythematous plaques. They are most commonly located on the extremities, particularly the legs, but they may occur anywhere on the trunk, hands, or feet. [25] Nummular eczema does not involve the face and scalp. Lesions are often symmetrically distributed. Plaques may be several centimeters.

See the image below.

Dry, scaling plaque of nummular dermatitis (size, Dry, scaling plaque of nummular dermatitis (size, 3 X 5 cm) on the shin.

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