To the Editor.—
Psoriasis and vitiligo are relatively common skin diseases in the general population, although the concurrence of both diseases used to be thought uncommon. In 1982, Koransky and Roenigk1 reported both diseases in seven patients over a period of three years, and suggested that such concurrence is probably not unusual.At the phototherapy unit, of the Massachusetts General Hospital, Boston, three such patients were treated for psoriasis with ultraviolet light in the B range (UV-B) using a standard protocol. In all three cases, psoriasis was cleared with UV-B. Despite the use of UV-B exposure doses equivalent to those employed in patients without vitiligo, phototoxicity was not more frequent. This report emphasizes the efficacy of inducible photoprotection by nonmelanin mechanisms.
Report of Cases.—Case 1.—
A 63-year-old woman of skin type II was successfully treated for psoriasis of two years' duration with UV-B phototherapy between December
Tham SN, Gange RW, Parrish JA. Ultraviolet-B Treatment of Psoriasis in Patients With Concomitant Vitiligo. Arch Dermatol. 1987;123(1):26–27. doi:10.1001/archderm.1987.01660250030008
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