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Updated: Jun 13, 2026

Precision Implementation of Minimal Erythema Dose (MED) Testing to Assess Individual Variation in Human Inflammatory Response
Published on: October 3, 2019
Erythema multiforme-like eruption localized to a sun-exposed area
Sevgi Akarsu1, Turna Ilknur, Emel Fetil
1Department of Dermatology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey. sevgi.akarsu@deu.edu.tr
Abstract:
We report on a 35-year-old woman with cutaneous lesions characterized by an erythema multiforme-like appearance localized in the photo-distributed pattern. She had no history of systemic drug ingestion, herpes simplex virus or any other infection, possible causes of erythema multiforme, before the sun exposure. She had normal tolerance to a phototest, but photoprovocation tests could not be performed because she did not agree to them. This case was diagnosed to be an erythema multiforme-like variant of a polymorphous light eruption; the differential diagnosis of target-like lesions in a photo-distributed pattern is discussed.
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