How is nummular dermatitis characterized?

Updated: Nov 21, 2019
  • Author: Jami L Miller, MD; Chief Editor: William D James, MD  more...
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Nummular eczema was first described by Deverigie in 1857 [1] as coin-shaped lesions on the upper extremities. Since then, it has been reported in all age groups and in all body areas but is most commonly found on the upper and lower extremities. [2] Lesions usually start as papules, which coalesce into plaques. They are usually scaly. Early lesions may be studded with vesicles containing serous exudate. Nummular eczema is usually very pruritic. Many precipitating factors have been reported, including dry skin, contact allergies, weather (particularly winter), nutritional issues, and emotional stress.

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