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Acute allergic phytodermatitis, bullous This eruption occurred in a patient who had walked barefoot through a forest. It later spread as a papular eruption.

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Presentation on theme: "Acute allergic phytodermatitis, bullous This eruption occurred in a patient who had walked barefoot through a forest. It later spread as a papular eruption."— Presentation transcript:

1 Acute allergic phytodermatitis, bullous This eruption occurred in a patient who had walked barefoot through a forest. It later spread as a papular eruption to the rest of the body. Similar lesions were present on the other foot and lower leg. Differential diagnosis included acute bullous contact dermatitis to caterpillars. Phytophotodermatitis was excluded because at the time of exposure, there was a heavily clouded sky and a papular eruption occurred later on. Caterpillar dermatitis was excluded because of the multiplicity of the lesions and because upon patch testing, the patient was positive to Toxicodendron haptens. Note, patch testing to urushiol is no longer done to avoid sensitization of patients. Source: Eczema/Dermatitis, Fitzpatrick's Color Atlas and Synopsis of Clinical Dermatology, 7e Citation: Wolff K, Johnson R, Saavedra AP. Fitzpatrick's Color Atlas and Synopsis of Clinical Dermatology, 7e; 2013 Available at: Accessed: October 14, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved

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