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Allergic contact dermatitis from hearing aid materials.

Abstract
A 65-year-old woman presented with dermatitis of the ear canal. The dermatitis had developed after she started wearing hearing aids that fit into the ear canals. Patch-test results were positive for (1) several acrylics, including polyethylene glycol dimethacrylate and 2-hydroxyethyl methacrylate, which were present in the hearing aid shell; (2) the hearing aid shell materials; and (3) the finish coat. The dermatitis resolved after she discontinued wearing the hearing aid, and a device with a silicone earpiece to be worn behind the ear was recommended as an alternative.
AuthorsApra Sood, James S Taylor
JournalDermatitis : contact, atopic, occupational, drug (Dermatitis) Vol. 15 Issue 1 Pg. 48-50 (Mar 2004) ISSN: 1710-3568 [Print] United States
PMID15573649 (Publication Type: Case Reports, Journal Article)
Chemical References
  • Allergens
  • Methacrylates
Topics
  • Aged
  • Allergens (adverse effects)
  • Dermatitis, Allergic Contact (diagnosis, etiology, pathology)
  • Diagnosis, Differential
  • Ear Canal
  • Female
  • Hearing Aids (adverse effects)
  • Humans
  • Methacrylates (adverse effects)
  • Patch Tests

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