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Autoeczematization in Adult
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Autoeczematization in Adult

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Contributors: Amy Spizuoco DO, Jeffrey D. Bernhard MD
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Synopsis

Id reaction, also known as autoeczematization, secondary dermatitis, autosensitization dermatitis, and generalized eczema, occurs when eczema develops at sites not exposed to an inciting agent. It is most often observed with allergic contact dermatitis and stasis dermatitis, but it is also seen in association with other forms of eczematous dermatitis and tinea pedis. The reaction usually appears a few days to weeks after the primary dermatitis and can be severely pruritic. It shows a symmetric pattern and has a predilection for the palms, soles, and extensor surfaces of the upper extremities. It 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. In the case of tinea pedis, it is often noted shortly after the institution of effective therapy and can be mistaken for an allergic reaction to the medication. All ages and skin types and both sexes are equally affected.

Codes

ICD10CM:
L30.2 – Cutaneous autosensitization

SNOMEDCT:
3014005 – Autoeczematization

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

Differential diagnoses include rashes that can arise in a widespread or disseminated fashion, as in the following:

Best Tests

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Management Pearls

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Therapy

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References

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Last Updated: 09/08/2017
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Autoeczematization in Adult
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Autoeczematization : Erythema, Fine scaly plaque, Widespread, Pruritus
Clinical image of Autoeczematization
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