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Allergic contact dermatitis (pediatric) in Child
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Allergic contact dermatitis (pediatric) in Child

See also in: Anogenital
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Contributors: Craig N. Burkhart MD, Dean Morrell MD, Lowell A. Goldsmith MD, MPH
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Synopsis

This summary discusses pediatric patients. Allergic contact dermatitis in adults is addressed separately.

Allergic contact dermatitis is a cutaneous inflammatory process (type IV cell-mediated or delayed hypersensitivity reaction) localized to areas where allergens contact the skin. Initial sensitization and development of cutaneous inflammation takes 1-4 weeks; however, repeat exposure produces reactions within 48 hours. As in adults, the most common contact allergens in children are urishiol (poison ivy, oak, or sumac), nickel, fragrance, cobalt (a metal), chromates (leather products), neomycin, thimerosal (ophthalmic preparations and vaccines), adhesives, and oxybenzone (sunscreens). The distribution and geometry of lesions are important clues to diagnosis.

Per February 2019, isobornyl acrylate was named the "contact allergen of the year" by the American Contact Dermatitis Society. It is an acrylic monomer often used as an adhesive in medical devices, and there have been multiple case reports of diabetes patients developing contact allergies to their insulin pumps. Clinician awareness is important, because testing using routine panels does not identify isobornyl acrylate.

Related topics: Irritant contact dermatitis, Hand dermatitis

Codes

ICD10CM:
L23.9 – Allergic contact dermatitis, unspecified cause

SNOMEDCT:
40275004 – Contact dermatitis

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Last Updated: 03/18/2019
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Allergic contact dermatitis (pediatric) in Child
See also in: Anogenital
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Allergic contact dermatitis (pediatric) : Erythema, Scaly papule, Scaly plaque, Vesicle, Pruritus
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