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Nicholas J. Lowe, MB, MRCP; Frank Bures, MD

Arch Dermatol. 1978;114(2):278-279.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

A perilesional pale ring of skin that was seen during ultraviolet (UV) treatment of psoriatics was described by Woronoff in 1926.¹ Recent studies into the pathogenesis of Woronoff's ring (WR) phenomenon were conducted by Penneys et al² during coaltar and UV-light treatment of psoriatics. A phenomenon similar to the Woronoff's rings (WR) was observed by us in a patient who was undergoing Psoralen and UVA (PUVA) therapy for psoriasis and this study was conducted to determine the frequency of WR in PUVA-treated psoriatics.

Patients and Methods

Twenty patients with psoriasis vulgaris were examined before and during PUVA treatment. The regimen followed that of Parrish et al in 1974.³ Patients took methoxsalen capsules orally (0.6 mg/kg of body weight) two hours before treatment with long wavelength UV light irradiation. The lamps used were of two types—one with 48 and the other with 36 vertical lamp tubes. Each contained . . . [Full Text PDF of this Article]

Author Affiliations
From the Department of Dermatology, University of Wisconsin Hospitals, Madison. Reprints not available.

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