Journal
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
Volume 50, Issue 1, Pages 159-166Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/S0360-3016(00)01542-X
Keywords
cutaneous radiation syndrome; fibrosis; interferon-gamma
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Background: Irradiation can cause acute inflammatory responses as well as chronic fibrotic alterations of the skin. Cutaneous radiation fibrosis evokes a complex of therapeutic problems. However, therapeutic options, apart from surgical approaches, are limited. Patients and Methods: Five female patients suffering from severe cutaneous fibrosis were treated with interferon-gamma on a low-dose regimen, 3 x 100 mug/week subcutaneously for 6 months, then once per week for another 6 months, In 4 patients, skin thickness was measured with high-frequency (20 MHz) ultrasound in a clinically well-defined target skin lesion. In 1 patient, nuclear magnetic resonance imaging was performed to quantify the extent of cutaneous radiation fibrosis and to monitor the therapeutic outcome. Results: All patients suffered from radiation-induced cutaneous fibrosis, Additionally, in 1 patient, a fistula, as assessed by lymph vessel scintigraphy, and in another patient a radiation ulcer was diagnosed. In all patients, reduction of radiation-induced fibrosis could be documented. Both fistula and radiation ulcer regressed completely under interferon-gamma therapy. Conclusion: Low-dose interferon-gamma therapy is a new and effective treatment modality for cutaneous radiation fibrosis caused by radiation therapy, The positive impact of interferon-gamma on our patients warrants randomized double-blind trials on therapy of radiation fibrosis, (C) 2001 Elsevier Science Inc.
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