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Updated: Jun 24, 2026

A Mouse Ear Model for Allergic Contact Dermatitis Evaluation
Published on: March 24, 2023
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
Abstract:
A 64-year-old male who cultivated orchids as a hobby, had noticed itchy erythematous lesions on both hands since 6 months earlier. His eruptions had gradually worsened and scales and fissures had appeared. Although he was treated with topical corticosteroids by a doctor, his erythema showed no improvement. Patch tests with the orchids he cultivated, fertilizers, antiseptics and insecticides showed positive reactions to the stems of Cymbidium and Oncidium orchids. A diagnosis of contact dermatitis attributable to the cultivated orchids was made.
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