Ana Maria Abreu Velez, Mariana Ramírez-Posada, Michael S Howard
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引用次数: 0
Abstract
Background: Chronic photosensitivity dermatitis (CPD) (also named actinic reticuloid) is an unusual disease classically referred often in elderly men. Affected patients have severely itchy, thickened dry skin in areas exposed to the sun throughout the years.
Method: A Caucasian female patient who worked most of her life outside who had "chronic dermatitis" in her neck started planting chrysanthemum in her garden on a sunny day. Later, she presented edema, erythema, papules, and a few vesicles in her neck with severe pruritus.
Studies: A skin biopsy revealed the diagnosis of CPD, along with positive testing for ultraviolet B (UVB), minimal erythema doses (MED) for UVB (MEDB) UVA (MEDA) and PhotoPath.
Results: Direct immunofluorescence (DIF) stains using anti-human antibodies against fibrinogen, albumin, IgG, IgM, lambda, kappa, and C3c and C1q were positive at the base membrane area of the dermal epidermal junction, in the papillary dermis, as well as the neurovascular bundles in all the dermis and the extracellular matrix, especially those under the blisters.
Conclusion: With this case, we suggest not forgetting the importance of using DIF in reactivated CPD cases in addition to the photo patch testing.
期刊介绍:
The journal is a forum for new information about the direct and distant effects of electromagnetic radiation (ultraviolet, visible and infrared) mediated through skin. The divisions of the editorial board reflect areas of specific interest: aging, carcinogenesis, immunology, instrumentation and optics, lasers, photodynamic therapy, photosensitivity, pigmentation and therapy. Photodermatology, Photoimmunology & Photomedicine includes original articles, reviews, communications and editorials.
Original articles may include the investigation of experimental or pathological processes in humans or animals in vivo or the investigation of radiation effects in cells or tissues in vitro. Methodology need have no limitation; rather, it should be appropriate to the question addressed.