We report an outbreak of occupational contact dermatitis from an anaerobic sealant. This diagnosis was given to 12 out of 48 exposed workers at two Danish refrigerator factories. Six workers showed a positive patch test reaction to 2-hydroxypropyl methacrylate, a constituent of the sealant. Main causes were insufficient information from the producer and poor work place hygiene.
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Dermatitis
January 2025
From the Dermatology Department, Fattouma Bourguiba University Hospital, Dermo-respiratory Research Laboratory LR20SP003, Monastir, Tunisia.
Contact Dermatitis
January 2025
Department of Dermatology and Venereology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Türkiye.
Dermatitis
January 2025
Department of Dermatology, University of California, San Francisco, California, USA.
Toluene-2,5-diamine sulfate (PTDS), also known as toluene diamine sulfate or 2,5-diaminotoluene sulfate, is an aromatic amine that can be used as a paraphenylenediamine (PPD) hair dye alternative. Patients may develop contact allergy to PTDS, and it is often omitted from standard patch test screening series, possibly leading to underdiagnosis. The American Contact Dermatitis Society named PTDS the Allergen of the Year for 2025, aiming to raise awareness of its dual role as both an allergen and an alternative for some PPD-allergic individuals.
View Article and Find Full Text PDFGeorgian Med News
November 2024
4Department of Pathology, University of Virginia, Charlottesville, USA.
The toxicokinetics of nitrosamines remain a mystery to this day, though it appears that the role of nitrosamines in potentiating the generation of mutations required for the onset of skin cancer continues to be a significant concern. Nitrosamines are mutagens, genotoxic substances, and mediators of phototoxicity/carcinogenicity, whose long-term daily usage, in the context of polypharmacy, can result in the parallel appearance of heterogeneous forms of skin cancer: keratinocytic and melanocytic. But a number of clinical observations suggest that it is the nitrosamines that potentiate the multiple occurrences of skin cancer over the years, or recurrences of skin cancer localized in areas exposed to solar radiation.
View Article and Find Full Text PDFArch Environ Occup Health
January 2025
Department of Oral Epidemiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima-city, Hiroshima, Japan.
We report a case of an industrial homeworker diagnosed with allergic contact dermatitis by UV-curing acrylic resin for crafts. Approximately 2 months after a female in her 40s started producing handicrafts using resin, itchy desquamative erythema and vesicles occurred on her eyelids and palms. The course of the symptoms suggested that her dermatitis was occupational origin.
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