International journal of radiation oncology, biology, physics 2007-02-01
Radiotherapy for malignancy in patients with scleroderma: The Mayo Clinic experience.   
ABSTRACT
PURPOSE
To determine the frequency of acute and chronic adverse effects in patients with scleroderma who receive radiotherapy for treatment of cancer.
METHODS AND MATERIALS
Records were reviewed of 20 patients with scleroderma who received radiotherapy. Acute and chronic toxic effects attributable to radiotherapy were analyzed, and freedom from radiation-related toxicity was calculated.
RESULTS
Of the 20 patients, 15 had acute toxic effects, with Grade 3 or higher toxicity for 3 patients. Seven patients had self-limited Grade 1 or 2 radiation dermatitis, and no patient had Grade 3 or higher radiation dermatitis. Thirteen patients had chronic toxic effects, with Grade 3 or higher chronic toxicity for 3 patients. The median estimated time to any grade chronic toxicity was 0.4 years, and the median estimated time to Grade 3 or higher chronic toxicity has not been reached.
CONCLUSIONS
The results suggest that although some patients with scleroderma treated with radiation experience considerable toxic effects, the occurrence of Grade 3 or higher toxicity may be less than previously anticipated.

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