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Nummular dermatitis in Child
Other Resources UpToDate PubMed

Nummular dermatitis in Child

Contributors: Jeffrey M. Cohen MD, Catherine J. Wang, Susan Burgin MD
Other Resources UpToDate PubMed

Synopsis

Nummular dermatitis is a form of dermatitis characterized by coin-shaped, scaly plaques. While generally a disease of adults, the peak age of childhood nummular dermatitis is 5 years. It is of uncertain etiology, but it is associated with triggers such as frequent bathing, low humidity, irritating and drying soaps, and exposure to irritating fabrics such as wool. Patients often have some of the signs and symptoms typically associated with atopic dermatitis. Pruritus can be severe, and affected children can be irritable.

Winter is usually the time of onset and exacerbation. Nummular dermatitis can be chronic with a waxing and waning course.

Some experts consider childhood nummular dermatitis as a subtype of atopic dermatitis.

Codes

ICD10CM:
L30.0 – Nummular dermatitis

SNOMEDCT:
81418003 – Nummular dermatitis

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

  • Allergic contact dermatitis
  • Irritant contact dermatitis
  • Tinea corporis
  • Psoriasis
  • Pityriasis rosea
  • Seborrheic dermatitis – The distribution of lesions is often a helpful clue in distinguishing this entity from atopic dermatitis.
  • Lichen simplex chronicus
  • Ichthyosis vulgaris
  • Scabies
  • Fixed drug eruption
  • Secondary syphilis

Best Tests

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Management Pearls

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Therapy

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Drug Reaction Data

Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.

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References

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Last Reviewed:01/31/2017
Last Updated:03/28/2017
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Patient Information for Nummular dermatitis in Child
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Nummular dermatitis in Child
A medical illustration showing key findings of Nummular dermatitis : Fine scaly plaque, Round configuration, Scattered few, Pruritus
Clinical image of Nummular dermatitis - imageId=216877. Click to open in gallery.  caption: 'Discrete, round, light red and brown plaques on the back.'
Discrete, round, light red and brown plaques on the back.
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