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March 1973

Photosensitive Dermatitis Due to Pyritinol

Author Affiliations

Mitaka, Tokyo

From the Department of Dermatology, Kyorin University School of Medicine, Mitaka, Tokyo.

Arch Dermatol. 1973;107(3):427-428. doi:10.1001/archderm.1973.01620180077024

Lichen planus-like photosensitive dermatitis due to pyritinol hydrochloride occurred in a 62-year-old man. Pigmentation intermingled with depigmentation as melanoleukoderma remained after involution of the eruption on the forehead and occipital region. A photosensitization period of five or six weeks' duration was found, and the photopatch test was positive. This case is considered to be due to photoallergy.

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