Photopatch testing: Clinical characteristics, test results, and final diagnoses from the North American Contact Dermatitis Group, 2009–2020

Vincent A. DeLeo; Brandon Adler; D. Belsito; Melanie D. Pratt; Denis Sasseville; Margo J. Reeder; Erin M. Warshaw; Amber Reck Atwater; James S. Taylor; Frances J. Storrs; James G. Marks; Joel G. DeKoven; Jonathan I. Silverberg; JiaDe Yu; Nina Botto; Marie‐Claude Houle; Christen M. Mowad; Cory A. Dunnick

doi:10.1111/cod.14677

Key Points

Photopatch testing confirms photoallergic contact dermatitis as a delayed hypersensitivity reaction triggered by allergens under ultraviolet radiation.
Clinical evaluations from 2009 to 2020 identify test results and final diagnoses for contact dermatitis, addressing scarce North American evidence.
Documented diagnostic findings highlight delayed hypersensitivity to specific allergens, supporting systematic photopatch testing protocols.

Implication

Observational analysis reveals clinical characteristics and diagnoses from photopatch testing, highlighting delayed hypersensitivity patterns.

Abstract

Photoallergic contact dermatitis (PACD) is a delayed hypersensitivity reaction to allergens only in the presence of ultraviolet radiation in sunlight. Photopatch testing (PhotoPT) is necessary to confirm the diagnosis of PACD. There are few published studies of PhotoPT in North America.

Discussion

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Cite This Study

DeLeo et al. (2024) studied this question.

synapsesocial.com/papers/68e5b74bb6db64358754fe3e https://doi.org/10.1111/cod.14677

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Photopatch testing: Clinical characteristics, test results, and final diagnoses from the North American Contact Dermatitis Group, 2009–2020

Key Points

Implication

Abstract

Discussion

Cite This Study

Photopatch testing: Clinical characteristics, test results, and final diagnoses from the North American Contact Dermatitis Group, 2009–2020

Key Points

Implication

Abstract

Discussion

Cite This Study

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