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Primula contact dermatitis: an easily overlooked diagnosis
1University of California, San Francisco.
Cutis
|June 1, 1990
Summary
Primula obconica causes allergic contact dermatitis, often misdiagnosed in women. Patch testing confirms this plant allergy, aiding in patient management and removal of the offending plant.
Area of Science:
- Dermatology
- Allergology
- Toxicology
Background:
- Contact dermatitis to Primula obconica is underreported in North American literature.
- This condition frequently affects women and is often misdiagnosed as endogenous dermatitis due to its nonspecific presentation.
Purpose of the Study:
- To summarize clinical experience with nine patients diagnosed with Primula obconica contact dermatitis.
- To highlight the importance of patch testing for accurate diagnosis and patient education.
Main Methods:
- Review of nine patient cases with suspected Primula obconica contact dermatitis over two years.
- Description of a simple patch testing technique using the Primula leaf.
Main Results:
- Nine cases of Primula obconica contact dermatitis were identified.
- Positive patch test reactions confirmed the diagnosis in all patients, facilitating plant removal.
Conclusions:
- Primula obconica is a significant cause of allergic contact dermatitis, frequently misdiagnosed.
- Patch testing is crucial for confirming the diagnosis and managing patients with this plant allergy.