P-tert-butylphenol-formaldehyde resin is a widely used adhesive chemical. It is used in a broad range of products and should be kept in mind when encountering children with suspected allergic contact dermatitis. We present a girl who developed contact allergy to p-tert-butylphenol-formaldehyde resin used in orthopedic braces.
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http://dx.doi.org/10.1111/pde.12836 | DOI Listing |
Dermatitis
October 2024
From the Department of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Polysensitization, defined as contact sensitization to three or more allergens, is an allergic phenotype with a common genetic background. Our study aims to characterize the clinical features of patients with polysensitization. We analyzed patch test results of 5,082 patients from a designated contact dermatitis clinic in Tel Aviv between 2012 and 2022 and compared the polysensitized group with nonsensitized and oligosensitized patients, hence patients reacting to 1 or 2 allergens.
View Article and Find Full Text PDFContact Dermatitis
February 2024
LEO Foundation Skin Immunology Research Center, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Only few studies on contact allergy in African countries have been published. The aim of the present study was to provide an overview of the most common contact allergens identified by the use of patch tests in African countries based on a review of the existing literature. A total of twenty-four publications from eight African countries were initially identified by search in PubMed.
View Article and Find Full Text PDFQatar Med J
November 2023
Allergy and Immunology Division, Department of Medicine, Hamad Medical Corporation, Doha, Qatar Email:
Background: Patch testing is the primary diagnostic approach for contact dermatitis, an inflammatory skin reaction caused by exposure to external irritants. The pathophysiology of contact dermatitis may entail an immunological response (hypersensitivity type IV), a non-immunological response (irritant contact dermatitis), or a mix of the two. The diagnosis of contact dermatitis requires a correlation between a positive patch test and clinical relevance.
View Article and Find Full Text PDFDermatitis
February 2022
Department of Dermatology, University of California San Diego.
Dermatitis
February 2022
Department of Dermatology, Keck School of Medicine, University of Southern California, Los Angeles.
Background: Shoe contact allergy can be difficult to diagnose and manage.
Objective: The aim of the study was to characterize demographics, clinical characteristics, patch test results, and occupational data for the North American Contact Dermatitis Group patients with shoe contact allergy.
Methods: This is a retrospective study of 33,661 patients, patch tested from 2005 to 2018, with a shoe source, foot as 1 of 3 sites of dermatitis, and final primary diagnosis of allergic contact dermatitis.
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