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[Contact dermatitis by Frullania dilatata (L) Dum].
Allergologia Et Immunopathologia
|July 1, 1976
Summary
Contact dermatitis can be caused by Frullania, a type of liverwort (hepatic) found on trees. This allergy, often affecting men in contact with oak trees, leads to eczema and is linked to sesquiterpenic lactones.
Area of Science:
- Dermatology
- Botany
- Allergology
Context:
- Frullania, a genus of liverworts (hepatics), grows on trees like oak and chestnut.
- Contact dermatitis cases linked to Frullania have been documented globally.
- Bryophytes, including hepatics, are plant groups that can cause allergic reactions.
Purpose:
- To investigate cases of contact dermatitis caused by Frullania dilatata.
- To identify the population affected by Frullania-induced dermatitis.
- To determine the allergenic compound responsible for Frullania sensitization.
Summary:
- Six cases of acute eczema from Frullania dilatata contact dermatitis were studied.
- Affected individuals, primarily men, had occupational or lifestyle contact with oak trees.
- Patch testing with the plant confirmed diagnosis; lesions appeared on face, hands, and genitals.
Impact:
- Identifies sesquiterpenic lactones as the sensitizing agents in Frullania.
- Highlights Frullania as a cause of allergic contact dermatitis, particularly in tree-related occupations.
- Suggests cross-reactivity with other plants containing sesquiterpenic lactones, like chrysanthemums.