Photoallergic contact dermatitis to Heracleum giganteum
| Autor: | Adrian Tanew, Daniela Karimian-Teherani, Tamar Kinaciyan |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
medicine.medical_specialty
Claw Allergy Heracleum Photopatch test Immunology Photoallergic Contact Dermatitis Dermatology Diagnosis Differential medicine Humans Immunology and Allergy Radiology Nuclear Medicine and imaging Plant Stems biology Dermatitis Photoallergic business.industry General Medicine Allergens Middle Aged Patch Tests biology.organism_classification medicine.disease Plant Leaves Furocoumarins Seeds Female business Contact dermatitis Phototoxic reactions |
| Zdroj: | Photodermatology, Photoimmunology & Photomedicine. 24:99-101 |
| ISSN: | 1600-0781 0905-4383 |
| DOI: | 10.1111/j.1600-0781.2008.00346.x |
| Popis: | Summary Heracleum plants occur in numerous species worldwide and may cause phototoxic reactions due to its content of various furocoumarins. In this case report, a widespread photoallergic contact dermatitis after exposure to Heracleum giganteum (giant bear claw) is described. A photopatch test with extracts from the stem, leaves and seeds of the giant bear claw revealed a positive papulovesicular reaction that already appeared at 24 h and peaked at 72 h after irradiation with 5 J/cm2 UVA. The unirradiated controls remained negative. We conclude that in rare cases Heracleum plants may cause severe photoallergic reactions that can be verified by photopatch testing. |
| Databáze: | OpenAIRE |
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