Allergic contact dermatitis

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doi:doi: 10.12788/jfp.0678

Dx Across the Skin Color Spectrum

Allergic contact dermatitis

J Fam Pract. 2023 October;72(8):350-352,355 | doi: 10.12788/jfp.0678

By

Tristi M. Edwards, MBBS, MSc

Richard P. Usatine, MD

Candrice R. Heath, MD

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References

1. Mowad CM, Anderson B, Scheinman P, et al. Allergic contact dermatitis: patient diagnosis and evaluation. J Am Acad Dermatol. 2016;74:1029-1040. doi: 10.1016/j.jaad.2015.02.1139

2. Usatine RP, Riojas M. Diagnosis and management of contact dermatitis. Am Fam Physician. 2010;82:249-255.

3. Bertoli MJ, Schwartz RA, Janniger CK. Autoeczematization: a strange id reaction of the skin. Cutis. 2021;108:163-166. doi: 10.12788/cutis.0342

4. Johansen JD, Bonefeld CM, Schwensen JFB, et al. Novel insights into contact dermatitis. J Allergy Clin Immunol. 2022;149:1162-1171. doi: 10.1016/j.jaci.2022.02.002

5. Karagounis TK, Cohen DE. Occupational hand dermatitis. Curr Allergy Asthma Rep. 2023;23:201-212. doi: 10.1007/s11882-023- 01070-5

6. Cvetkovski RS, Rothman KJ, Olsen J, et al. Relation between diagnoses on severity, sick leave and loss of job among patients with occupational hand eczema. Br J Dermatol. 2005;152:93-98. doi: 10.1111/j.1365-2133.2005.06415.x

7. Owen JL, Vakharia PP, Silverberg JI. The role and diagnosis of allergic contact dermatitis in patients with atopic dermatitis. Am J Clin Dermatol. 2018;19:293-302. doi: 10.1007/s40257-017-0340-7

8. Brites GS, Ferreira I, Sebastião AI, et al. Allergic contact dermatitis: from pathophysiology to development of new preventive strategies. Pharmacol Res. 2020;162:105282. doi: 10.1016/ j.phrs.2020.105282

9. Nielsen NH, Menne T. The relationship between IgE‐mediatedand cell‐mediated hypersensitivities in an unselected Danish population: the Glostrup Allergy Study, Denmark. Br J Dermatol. 1996;134:669-672. doi: 10.1111/j.1365-2133.1996.tb06967.x

10. Alinaghi F, Bennike NH, Egeberg A, et al. Prevalence of contact allergy in the general population: a systematic review and meta‐analysis. Contact Dermatitis. 2019;80:77-85. doi: 10.1111/cod.13119

11. DeLeo VA, Alexis A, Warshaw EM, et al. The association of race/ ethnicity and patch test results: North American Contact Dermatitis Group, 1998-2006. Dermatitis. 2016;27:288-292. doi: 10.1097/ DER.0000000000000220

12. Warshaw EM, Schlarbaum JP, Silverberg JI, et al. Contact dermatitis to personal care products is increasing (but different!) in males and females: North American Contact Dermatitis Group data, 1996-2016. J Am Acad Dermatol. 2021;85:1446-1455. doi: 10.1016/j jaad.2020.10.003

13. Dickel H, Taylor JS, Evey P, et al. Comparison of patch test results with a standard series among white and black racial groups. Am J Contact Dermatol. 2001;12:77-82. doi: 10.1053/ajcd.2001.20110

14. DeLeo VA, Taylor SC, Belsito DV, et al. The effect of race and ethnicity on patch test results. J Am Acad Dermatol. 2002;46(2 suppl):S107-S112. doi: 10.1067/mjd.2002.120792

15. Scott I, Atwater AR, Reeder M. Update on contact dermatitis and patch testing in patients with skin of color. Cutis. 2021;108:10-12. doi: 10.12788/cutis.0292

16. Tamazian S, Oboite M, Treat JR. Patch testing in skin of color: a brief report. Pediatr Dermatol. 2021;38:952-953. doi: 10.1111/ pde.14578

17. Litchman G, Nair PA, Atwater AR, et al. Contact dermatitis. Stat- Pearls [Internet]. Updated February 9, 2023. Accessed September 25, 2023. www.ncbi.nlm.nih.gov/books/NBK459230/

18. Alexis AF, Callender VD, Baldwin HE, et al. Global epidemiology and clinical spectrum of rosacea, highlighting skin of color: review and clinical practice experience. J Am Acad Dermatol. 2019;80:1722-1729. doi: 10.1016/j.jaad.2018.08.049

19. Rodriguez-Homs LG, Liu B, Green CL, et al. Duration of dermatitis before patch test appointment is associated with distance to clinic and county poverty rate. Dermatitis. 2020;31:259-264. doi: 10.1097/DER.0000000000000581

20. Foschi CM, Tam I, Schalock PC, et al. Patch testing results in skin of color: a retrospective review from the Massachusetts General Hospital contact dermatitis clinic. J Am Acad Dermatol. 2022;87:452-454. doi: 10.1016/j.jaad.2021.09.022

21. Qian MF, Li S, Honari G, et al. Sociodemographic disparities in patch testing for commercially insured patients with dermatitis: a retrospective analysis of administrative claims data. J Am Acad Dermatol. 2022;87:1411-1413. doi: 10.1016/j.jaad.2022.08.041

22. Young K, Collis RW, Sheinbein D, et al. Retrospective review of pediatric patch testing results in skin of color. J Am Acad Dermatol. 2023;88:953-954. doi: 10.1016/j.jaad.2022.11.031

23. Kadyk DL, Hall S, Belsito DV. Quality of life of patients with allergic contact dermatitis: an exploratory analysis by gender, ethnicity, age, and occupation. Dermatitis. 2004;15:117-124.

THE COMPARISON

A An 11-year-old Hispanic boy with allergic contact dermatitis (ACD) on the abdomen. The geometric nature of the eruption and proximity to the belt buckle were highly suggestive of ACD to nickel; patch testing was not needed.

B A Black woman with ACD on the neck. A punch biopsy demonstrated spongiotic dermatitis that was typical of ACD. The diagnosis was supported by the patient’s history of dermatitis that developed after new products were applied to the hair. The patient declined patch testing.

C A Hispanic man with ACD on hair-bearing areas of the face where hair dye was used. The patient’s history of dermatitis following the application of hair dye was highly suggestive of ACD; patch testing confirmed the allergen was paraphenylenediamine (PPD).

Allergic contact dermatitis (ACD) is an inflammatory condition of the skin caused by an immunologic response to 1 or more identifiable allergens. A delayed-type immune response (type IV hypersensitivity reaction) occurs after the skin is re-exposed to an offending allergen.¹ Severe pruritus is the main symptom of ACD in the early stages, accompanied by erythema, vesicles, and scaling in a distinct pattern corresponding to the allergen’s contact with the skin.² Delayed widespread dermatitis after exposure to an allergen—a phenomenon known as autoeczematization (id reaction)—also may occur.³

The gold-standard diagnostic tool for ACD is patch testing, in which the patient is re-exposed to the suspected contact allergen(s) and observed for the development of dermatitis.⁴ However, ACD can be diagnosed with a detailed patient history including occupation, hobbies, personal care practices, and possible triggers with subsequent rashes. Thorough clinical examination of the skin is paramount. Indicators of possible ACD include dermatitis that persists despite use of appropriate treatment, an unexplained flare of previously quiescent dermatitis, and a diagnosis of dermatitis without a clear cause.¹

Hairdressers, health care workers, and metal workers are at higher risk for ACD.⁵ Occupational ACD has notable socioeconomic implications, as it can result in frequent sick days, inability to perform tasks at work, and in some cases job loss.⁶

Patients with atopic dermatitis have impaired barrier function of the skin, permitting the entrance of allergens and subsequent sensitization.⁷ ACD is a challenge to manage, as complete avoidance of the allergen may not be possible.⁸

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