Tattoo-induced immunologic reaction to red inks.

Asia Pac Allergy

Immunoallergology Department, Unidade Local de Saúde da Arrábida, Setúbal, Portugal.

Published: December 2024

AI Article Synopsis

  • A 43-year-old man developed itchy nodular lesions on his leg tattoo four weeks after getting it, prompting tests for allergies.
  • The tests revealed sensitization to certain inks containing specific dyes, indicating a T-cell hypersensitivity reaction associated with the red pigments.
  • While there's debate over the effectiveness of patch testing for tattoo reactions, it can help identify problematic inks and inform future tattoo decisions to avoid similar issues.

Article Abstract

A 43-year-old male presented with pruritic nodular lesions in the red dye area of his leg tattoo, which developed 4 weeks after its application. Patch tests were performed using a standard series, and the inks used by the tattooist were tested semi-open. Tests identified a sensitization to 2 inks containing an azo-organic dye (Pigment Red 170), diketopyrrolopyrrole (Pigment Red 254), and copper phthalocyanine (Pigment Blue 15). Histopathological findings suggested a pseudolymphoid reaction, likely driven by T-cell hypersensitivity to the red pigments. Although the utility of patch testing in the assessment of tattoo reactions is not consensual, it can be useful in identifying the offending inks, helping to guide future tattoo choices and prevent recurrences. Patch testing including the suspected ink should not be disregarded from the diagnostic workup.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11608633PMC
http://dx.doi.org/10.5415/apallergy.0000000000000165DOI Listing

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