Contact dermatitis, also known as contact eczema, is an adverse skin reaction after contact exposure to a foreign agent, caused either by its irritant (irritant contact dermatitis, ICD) or its allergenic property (allergic contact dermatitis, ACD). The clinical appearance of the lesions depends on the skin region involved and the duration of the exposure; it may be papular, urticaria-like, vesicular, or bullous, presented on an erythematous background. In dark pigmented or black skin, erythema is less recognizable, and the lesions are often hypo- or hyperpigmented; after repeated or persisting exposure, eczematization occurs, and chronic pruritus often results in lichenification. In specific areas of the body such as the eyelids, penis, and scrotum, contact dermatitis can be presented as erythematous edema rather than papules or vesicles. Lesions can be provoked or aggravated by exposure to sun or UV light, resulting in a phototoxic or photoallergic reaction. The skin response also depends on the particular properties of the agent, the nature and duration of the contact, and the individual susceptibility of the patient.
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Zaidi Z. Skin of colour: characteristics and diseases. J Pak Med Assoc. 2017;67:292–9.PubMedGoogle Scholar
Kompaore F, Marty JP, Dupont C. In vivo evaluation of the stratum corneum barrier function in blacks, Caucasians and Asians with two noninvasive methods. Skin Pharmacol. 1993;6:200–7.CrossRefPubMedGoogle Scholar
Reed JT, Ghadially R, Elias PM. Skin type, but neither race of gender, influence epidermal permeability barrier function. Arch Dermatol. 1995;131:1134–8.CrossRefPubMedGoogle Scholar
Hicks SP, Swindells KJ, Middelkamp-Hup MA, et al. Confocal histopathology of irritant contact dermatitis in vivo and the impact of skin color (black vs white). J Am Acad Dermatol. 2003;48:727–34.CrossRefPubMedGoogle Scholar
Berardesca E, Maibach HI. Racial differences in sodium-lauryl-sulphate induced cutaneous irritation: black and white. Contact Dermatitis. 1988;18:65–70.CrossRefPubMedGoogle Scholar
Berardesca E, Maibach HI. Sodium-lauryl-sulphate-induced cutaneous irritation. Comparison of white and Hispanic subjects. Contact Dermatitis. 1988;19:136–40.CrossRefPubMedGoogle Scholar
Kligman AM, Epstein W. Updating the maximization test for identifying contact allergens. Contact Dermatitis. 1975;1:231–9.CrossRefPubMedGoogle Scholar
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 Dermat. 2001;12:77–82.PubMedGoogle Scholar
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;27:288–92.CrossRefPubMedGoogle Scholar
Berardesca E, Maibach H. Ethnic skin: overview of structure and function. J Am Acad Dermatol. 2003;48(S1):39–42.Google Scholar
Kot M, Bogaczewicz J, Kręcisz B, et al. Contact hypersensitivity to European baseline series and corticosteroid series haptens in a population of adult patients with contact eczema. Acta Dermatovenerol Croat. 2016;24:29–36.PubMedGoogle Scholar
Schnuch A, Uter W, Geier J, et al. Epidemiology of contact allergy: an estimation of morbidity employing the clinical epidemiology and drug-utilization research (CE-DUR) approach. Contact Dermatitis. 2002;47:32–9.CrossRefPubMedGoogle Scholar
Spiewak R. Pesticides as a cause of occupational skin diseases in farmers. Ann Agric Environ Med. 2001;8:1–5.PubMedGoogle Scholar
Mark KA, Brancaccio RR, Soter NA, et al. Allergic contact and photoallergic contact dermatitis to plant and pesticide allergens. Arch Dermatol. 1999;135:67–70.CrossRefPubMedGoogle Scholar
Trehan A, Singh K, Kanodia S, et al. Contact hypersensitivity and hand eczema–a study with Indian standard series of allergens. MedPulse. 2014;1:304–9.Google Scholar
Sharma VK, Bhari N, Wadhwani AR, et al. Photo-patch and patch tests in patients with dermatitis over the photo-exposed areas: a study of 101 cases from a tertiary care centre in India. Australas J Dermatol. 2016. https://doi.org/10.1111/ajd.12504.
Douglas KE, Ofure Agbi J, Akpovienehe O, et al. Occupational hand dermatitis among hair dressers in a semi-urban community in Rivers State, South-South Nigeria. Nigerian Health J. 2013;13:125–30.Google Scholar
Paulsen E, Hyldgaard MG, Andersen KE, et al. Allergenic sesquiterpene lactones from cushion bush (Leucophyta brownii): new and old sensitizers in a shrub-turned-a-pot plant. Contact Dermatitis. 2017. https://doi.org/10.1111/cod.12757.
Shahzad M, Alzolibani AA, Al Robaee AA, et al. Patients seen at the Dermatology ambulatory office in a tertiary care center in Qassim region, Saudi Arabia. Int J Health Sci. 2013;7:130–5.CrossRefGoogle Scholar
Lachapelle JM. The spectrum of diseases for which patch testing is recommended. In: Lachapelle JM, Maibach HI, editors. Patch testing and prick testing. Berlin: Springer; 2009. p. 7–32.CrossRefGoogle Scholar
Berih A, Berhanu A. Allergic dermatitis – black henna (para-phenylenediamine) use among the East African patient population in a general practice setting. Aust Fam Physician. 2014;43:383–5.PubMedGoogle Scholar
Khumalo NP, Jessop S, Ehrlich R. Prevalence of cutaneous adverse effects of hairdressing: a systematic review. Arch Dermatol. 2006;142:377–83.CrossRefPubMedGoogle Scholar
Stallings A, Sood A. Hair-care practices in African American women: potential for allergic contact dermatitis. Semin Cutan Med Surg. 2016;35:207–10.CrossRefPubMedGoogle Scholar
Plombom GY, Oliveira MS, Tabushi FL, et al. Epidemiological analysis of occupational dermatitis notified in Brazil in the period 2007 to 2012. An Bras Dermatol. 2016;91:732–73.CrossRefPubMedPubMedCentralGoogle Scholar
Vejanurug P, Tresukosol P, Sajjachareonpong P, et al. Fragrance allergy could be missed without patch testing with 26 individual fragrance allergens. Contact Dermatitis. 2016;74:230–5.CrossRefPubMedGoogle Scholar
1.Consultant Dermatology, Pediatric Dermatology and Allergy, Head of Arab Board Dermatology Residency Program, Chair, Division of Dermatology and Allergy Director of Arab Board Dermatology Residency ProgramSheikh Khalifa Medical CityAbu DhabiUAE
2.Consultant Dermatology and Pediatric Dermatology, Department of Dermatology and AllergySheikh Khalifa Medical CityAbu DhabiUAE
3.Department of DermatologyUniversity Medical Center Brussels (UZ Brussels), The Free University of Brussels (VUB)BrusselsBelgium