There is agreement on the existence of solar urticaria elicited by ultraviolet irradiation of wavelengths below 370 nm, with positive passive transfer and positive reverse passive transfer reactions.1-4 When widespread, solar urticaria can be accompanied by general malaise and even shock.5 Stimulation of gastric secretion is also mentioned in the literature.6
Report of a Case
A 34-year-old man consulted me on July 18, 1977 about urticarial reactions following exposure to sunlight since 1970. The lesions develop even when the patient is driving a car or sitting behind a window. The hives appeared after he had been in the sunshine a few minutes and persisted for hours. When large areas of the body were involved, the patient felt uneasy and tired, and sweated profusely. The symptoms had become progressively more severe since the time of onset in 1970. The patient had also suffered with a gastric ulcer since
Van Hecke E. Solar Urticaria. Arch Dermatol. 1979;115(6):759. doi:https://doi.org/10.1001/archderm.1979.04010060057034
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