Solar urticaria confined to areas of bruising.
Solar urticaria is a rare immunoglobulin E-mediated photodermatosis characterized by the development of a pathognomic wheal and flare within minutes of photoexposure. A 26-year-old man presented with a history of sun-induced urticaria only in areas of pre-existing bruising, which we were able to replicate with monochromator testing. We were also able to demonstrate, by autologous in vitro studies, that a serum factor was responsible.
Esdaile
Ben
B
Department of Dermatology, Amersham Hospital, Buckinghamshire, UK. ben@esdaile.info
Grabczynska
Sophie
S
George
Sheru
S
D000328:Adult; D006801:Humans; D008297:Male; D010787:Photosensitivity Disorders / Q000209:etiology* / Q000276:immunology; D013472:Sunlight / Q000009:adverse effects*; D014581:Urticaria / Q000209:etiology* / Q000276:immunology