1/2. Systemic contact dermatitis to raw cashew nuts in a pesto sauce.Systemic contact dermatitis from the cashew nut shell oil resorcinol allergens cardol and anacardic acid is recognized clinically as a dermatitis with flexural accentuation, typically distributed on the extremities, groin, and buttocks, and occurring generally 1 to 3 days after ingestion of raw cashew nuts contaminated with allergenic oil. We report a case of systemic contact dermatitis to raw cashew nuts, an atypical and unexpected ingredient flavoring an imported pesto sauce. plants with allergens that potentially cross-react with poison ivy and other Toxicodendrons, and the concepts of systemic contact dermatitis and hyposensitization are reviewed.- - - - - - - - - - ranking = 1keywords = ivy (Clic here for more details about this article) |
2/2. erythema multiforme associated with contact dermatitis to poison ivy: three cases and a review of the literature.erythema multiforme (EM) is a hypersensitivity reaction that occurs mainly after exposure to certain medications or in the setting of infection, most commonly that due to herpes simplex virus. Rare cases of EM have been reported after allergic contact dermatitis due to various substances. There has been one case in the literature of EM following rhus contact dermatitis. We report three patients who developed EM after allergic contact dermatitis due to poison ivy. In all three patients, targetoid lesions developed primarily on the palms and soles, either after a brief course of prednisone or during its taper. Two of the patients have had more than one episode of EM after poison ivy dermatitis. Although EM has been described after allergic contact dermatitis due to a variety of antigens (nickel being the most common), there is only one report in the literature of EM following rhus contact dermatitis. Given the prevalence of allergic contact dermatitis due to poison ivy, this may be an under-reported complication.- - - - - - - - - - ranking = 7keywords = ivy (Clic here for more details about this article) |