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Nummular eczema

Matthew J Zirwas, MD
Section Editor
Joseph Fowler, MD
Deputy Editor
Rosamaria Corona, MD, DSc


Nummular eczema, also called discoid eczema or nummular dermatitis, is a chronic inflammatory skin disease characterized by multiple, pruritic, coin-shaped eczematous lesions involving the extremities and, less commonly, the trunk (picture 1A) [1]. Nummular eczema is regarded as a distinctive form of endogenous (idiopathic) eczema.

This topic will discuss the clinical features, diagnosis, and treatment of nummular eczema. Atopic dermatitis, allergic contact dermatitis, and other types of eczematous dermatitis are discussed separately.

(See "Atopic dermatitis (eczema): Pathogenesis, clinical manifestations, and diagnosis".)

(See "Treatment of atopic dermatitis (eczema)".)

(See "Clinical features and diagnosis of allergic contact dermatitis".)

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Literature review current through: Nov 2017. | This topic last updated: Aug 01, 2016.
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  2. Susan Burgin. Nummular eczema, Lichen simplex chronicus, and Prurigo nodularis. In: Fitzpatrick's Dermatology in General Medicine, 8th Edition, Goldsmith LA, Katz SI, Gilchrest BA, at al (Eds), McGraw-Hill, 2012. Vol 1, p.182.
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