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6-Methylcoumarin photocontact dermatitis
Sporadic cases of a severe photocontact dermatitis have appeared in the last few years following use of fruity-smelling suntan preparations and sunlight exposure. We report five such cases in women who developed severe edema and erythema of sun-exposed areas shortly after application of agents containing 6-methylcoumarin used as fragance. Routine photopatch testing was unproductive in reproducing the reaction, but immediate application of 6-methylcoumarin before ultraviolet A (UVA) radiation elicited significant positive results.
Sporadic cases of a severe photocontact dermatitis have appeared in the last few years following use of fruity-smelling suntan preparations and sunlight exposure. We report five such cases in women who developed severe edema and erythema of sun-exposed areas shortly after application of agents containing 6-methylcoumarin used as fragance. Routine photopatch testing was unproductive in reproducing the reaction, but immediate application of 6-methylcoumarin before ultraviolet A (UVA) radiation elicited significant positive results.
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