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Autoeczematization in Child
Other Resources UpToDate PubMed

Autoeczematization in Child

Contributors: Erin X. Wei MD, Amy Spizuoco DO, Jeffrey D. Bernhard MD, Susan Burgin MD
Other Resources UpToDate PubMed

Synopsis

Id reaction, also known as autoeczematization, secondary dermatitis, autosensitization dermatitis, and generalized eczema, occurs when eczema develops at sites not affected by a primary inciting dermatosis. In children, it is usually observed with allergic or irritant contact dermatitis, infections (typically fungal), and, in adults, stasis dermatitis with allergic contact dermatitis, but it is also seen in association with stasis dermatitis without contact dermatitis, inflammatory tinea pedis, and other forms of eczematous dermatitis. The reaction usually appears a few days to weeks after the primary dermatitis and can be severely pruritic. It shows a symmetric distribution and has a predilection for the palms, soles, and extensor surfaces of the upper extremities. All ages and populations, and both sexes, are equally affected.

In children, id reaction is most often observed after a kerion or severe tinea capitis. In this case, the id reaction typically affects the upper body and face. Id reaction is also commonly observed in children in association with allergic contact dermatitis to nickel.

The condition is thought to result from a lower threshold for developing an eczematous hypersensitivity reaction in patients with preceding or concurrent inflammatory processes of the skin. Memory T-cells are thought to play a role in the cases of id reaction associated with allergic contact dermatitis.

Codes

ICD10CM:
L30.2 – Cutaneous autosensitization

SNOMEDCT:
3014005 – Id reaction

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Last Reviewed:02/04/2021
Last Updated:02/04/2021
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Autoeczematization in Child
Autoeczematization : Erythema, Fine scaly plaque, Scattered many, Pruritus
Clinical image of Autoeczematization
Widespread coalescing, deep red papules and plaques on the face, chest, and arms.
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