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Article
June 1976

Pathogenesis of Solar UrticariaSweat Droplet in Testing for Photosensitivity

Author Affiliations

From the Department of Dermatology, University of Pennsylvania School of Medicine, Philadelphia.

Arch Dermatol. 1976;112(6):850-852. doi:10.1001/archderm.1976.01630300058013
Abstract

• It was impossible to replicate solar urticaria lesions by irradiation in the laboratory, until the role of sweating was recognized. We found that the sweat droplet, acting as a lens, serves as a photointensifier. As such, sweat would appear to play a meaningful role in the pathogenesis of cutaneous photosensitivity reactions, as well as be an adjuvant in phototesting.

(Arch Dermatol 112:850-852, 1976)

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