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Chronic actinic dermatitis: a time course study of histopathological changes
1Department of Dermatology, Kansai Medical University, Moriguchi, Osaka, Japan.
Photodermatology, Photoimmunology & Photomedicine
|April 1, 1991
Abstract:
We report herein a case of chronic actinic dermatitis in which histopathological changes were observed on several occasions during the course of 2 years. The findings were quite different among stages of the eruption. At a half year after the appearance of the lesion, histological findings revealed eczematous changes. However, gradually a granulomatous change appeared with histiocytes and giant cells. Although the mechanism of histogenesis is not clear, the appearance of histiocytic giant cells seems to be unusual in chronic actinic dermatitis.