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GARDENING (AGRICULTURE)
PLANT-SUBSTANCES
ALLERGIC-DERMATITIS

ALLERGIC CONTACT DERMATITIS FROM HEDERA HELIX L

Allergic contact dermatitis from the ivy Hedera-helix was described in a case report of a 44 year old nonatopic male gardener. After exposure on two occasions, clinical symptoms included vesiculation and exudation on both extensor forearms, erythematous lesions on the arms and hands, intense itching, erythema and 1 to 2 millimeter papules, distributed linearly. Patch tests elicited positive responses to several ornamental varieties of H-helix. Patch tests were done with falcarinol and didehydrofalcarinol, and plants containing these allergens, including carrot, Fatshedera-lizei, Schefflera-arboricola and Panax-ginseng. All elicited positive reactions.

Contact Dermatitis, 33(2):133-134, 1995. (6 references)

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