| Summary: | ABSTRACT In the past few years, the glucose sensor FreeStyle Libre® has been associated with several cases of allergic contact dermatitis. The allergen responsible for most of these cases is isobornyl acrylate, a substance present within the sensor that migrates through the adhesive, thereby reaching the skin. Acquired leukoderma, which may occur in an area previously affected by allergic contact dermatitis, has been described in several medical devices with adhesives. However, until the present, only one case of leukoderma induced by allergic contact dermatitis to FreeStyle Libre® has been described. We report the case of a 41-year-old woman with diabetes mellitus type 1, who developed leukoderma in association with allergic contact dermatitis to this glucose sensor.
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