Solar urticaria
A case of solar urticaria is presented, followed by a discussion of the clinical characteristics, pathophysiology, diagnosis, and management of this disease. Special emphasis is given to clinical pearls and pitfalls for the practicing allergist. Solar urticaria is a physical urticaria that can be difficult to diagnose and distinguish from other photodermatoses. There are some characteristic features that are important to remember when evaluating a patient with suspected solar urticaria. Testing can be difficult without the assistance of an experienced dermatologist because there are several different wavelengths of light that can lead to a patient's symptoms. Solar urticaria tends to be a chronic disease with a low 5-year resolution rate but can usually be effectively managed with multiple antihistamines.
Keywords: Chromophore; dermatographism; erythrocytic protoporphyria; minimal urticarial dose; photodermatoses; phototherapy; physical urticaria; polymorphic light eruption; solar urticaria
Document Type: Research Article
Affiliations: Department of Allergy and Immunology, Walter Reed Army Medical Center, Washington, D.C., USA. [email protected]
Publication date: 01 September 2009
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