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January 1990

Safety of Grenz Ray Therapy

Author Affiliations

Portland Dermatology Clinic 2250 NW Flanders St Portland, OR 97210

Arch Dermatol. 1990;126(1):119-120. doi:10.1001/archderm.1990.01670250125022

To the Editor.—  Burns'1 editorial on the risk of cutaneous radiation for therapeutic purposes lets the casual reader assume that such a practice involves substantial dangers that render it undesirable in the management of benign dermatoses. We wish to offer a different interpretation of his review.He refers to the high risk of basal cell carcinoma following grenz, x-ray, or psoralen plus ultraviolet light (PUVA) therapy; actually the risk is extremely low. Lindelöf and Eklund,2 reviewing over 14 000 cases treated with grenz ray therapy, concludes that the risk is indeed small, if any, when appropriate guidelines are followed. In another study, Mortensen and Kjeldsen3 reported five cases of skin cancer referred to the University Hospital at Århus (Denmark) over a 10-year period, all of whom were patients who received over 100 Gy, and only one of these appeared to have major complications. There is also a

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