Allergic contact dermatitis to dimethyl fumarate in footwear.

[Contact dermatitis due to dimethyl fumarate].

Dimethyl fumarate is a fumaric acid ester. It been used for some years to treat psoriasis and also as a preservative in desiccant sachets in the transport of furniture and footwear. Its irritant properties and sensitizing potential in contact with the skin were recently highlighted when it was implicated as the causative agent in 2 epidemics of severe acute eczema: sofa dermatitis in northern E...

Correlation between lesion site and concentration of dimethyl fumarate in different parts of shoes in patients with contact dermatitis caused by dimethyl fumarate in footwear.

BACKGROUND Dimethyl fumarate (DMF) has been identified as being responsible for an outbreak of shoe contact dermatitis in Europe. All reported cases to date have involved the dorsa of the toes and the dorsa of the feet, sometimes in association with other areas. OBJECTIVES To establish a correlation between the site of the lesions and the concentration of DMF in different parts of the footwea...

Allergic contact dermatitis to shoes induced by dimethylfumarate: A new allergen imported from China.

BACKGROUND In the last two years several cases of severe contact dermatitis related to newly acquired sofas and armchairs originating from China have been published. The responsible allergen is dimethylfumarate (DMF), an extremely potent sensitizer and irritant found in sachets inside the furniture. Recently, cases of contact dermatitis related to shoes and riding helmets have also been describ...

Patch Testing in Patients with Suspected Footwear Dermatitis: A Retrospective Study

BACKGROUND Footwear dermatitis represents a common but often undiagnosed or misdiagnosed condition. Patch testing aids in its confirmation and identification of the offending allergen. AIMS This study aimed to find the frequency of positive patch test reactions in cases with suspected allergic contact dermatitis (ACD) to footwear, as well as the common responsible allergens. MATERIALS AND M...

Allergic chromium dermatitis from wearing 'chromium-free' footwear.