Photosensitive Psoriasis Provoked by a Suberythematous Dose of Ultraviolet-B Light
作者:
Kazuhiro Kudoh,
Masaaki Obata,
Wakio Torinuki,
Hachiro Tagami,
期刊:
Dermatology
(Karger Available online 1988)
卷期:
Volume 176,
issue 3
页码: 138-142
ISSN:1018-8665
年代: 1988
DOI:10.1159/000248690
出版商: S. Karger AG
关键词: Psoriasis;Photosensitivity;Köbner phenomenon
数据来源: Karger
摘要:
An unusual case of ‘photosensitive psoriasis’ is reported. This patient had experienced an exacerbation after sea-bathing, and psoriatic eruptions were observed on the sun-exposed areas of the body. Phototesting with ultraviolet-B (UV-B) revealed his minimal erythema dose to be within normal limits. Three to four weeks after phototesting, however, he developed a psoriatic macule on the area exposed to the suberythematous dose of UV-B. The histologic features of the skin lesion provoked by UV-B irradiation were similar to those of naturally occurring lesions on areas covered by clothes. Moreover, failure to reproduce skin lesions following tape-stripping ruled out a proneness of this patient to develop the Köbner phenomenon nonspecific
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