Eczema, nummular: Coin-shaped plaques of inflamed skin-most common on the arms, back, buttocks, and lower legs that may be crusted, scaling, and extremely itchy.
The word "nummular" is taken from the Latin "hummus," a small coin.
Quick GuideEczema (Atopic Dermatitis) Causes, Symptoms, Treatment
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Last Editorial Review: 6/9/2016