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A Mouse Ear Model for Allergic Contact Dermatitis Evaluation

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Contact dermatitis due to orchids (Cymbidium and Oncidium).

Masahiro Iwata¹, Takuro Kanekura, Akira Gushi

¹Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Japan. baggio@m3.kufm.kagoshima-u.ac.jp

The Journal of Dermatology

|March 25, 2006

Summary

This summary is machine-generated.

Contact dermatitis can arise from orchid cultivation. A hobbyist experienced persistent hand rashes, later diagnosed as an allergic reaction to Cymbidium and Oncidium orchid stems.

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Area of Science:

Dermatology
Allergology
Botany

Background:

Occupational and hobby-related exposures are common causes of contact dermatitis.
Plant-induced allergic contact dermatitis requires accurate identification of the causative agent.

Observation:

A 64-year-old male orchid cultivator presented with a 6-month history of worsening itchy, erythematous hand lesions, including scales and fissures.
Topical corticosteroid treatment provided no relief for the persistent erythema.

Findings:

Patch testing revealed positive reactions to the stems of Cymbidium and Oncidium orchids.
The patient was diagnosed with allergic contact dermatitis specifically linked to his cultivated orchids.

Implications:

This case highlights orchids, specifically Cymbidium and Oncidium stems, as potential allergens causing contact dermatitis.
Awareness among dermatologists and plant enthusiasts is crucial for diagnosing and managing plant-related allergic reactions.