Abstract
Purpose: To demonstrate the safety and efficacy of limited margin radiotherapy in the local control of pediatric and young adult patients with high-grade nonrhabdomyosarcoma soft tissue sarcoma (NRSTS). Methods and Materials: Pediatric patients with high-grade NRSTS requiring radiation were treated on an institutional review board approved prospective institutional study of conformal/intensity-modulated/interstitial brachytherapy using a 2-cm anatomically constrained margin. Results: A total of 32 patients (median age, 15.3 years; range, 2-22 years) received adjuvant (27 patients) or definitive (5 patients) irradiation. With a median follow-up of 32 months, the 3-year cumulative incidence of local failure was 3.7% for patients undergoing irradiation after surgical resection. Four patients experienced local failure; the mean dose to the volume of recurrence was ≥97% of the prescribed dose. Conclusions: Delivery of limited margin radiotherapy using external beam or brachytherapy provides a high rate of local tumor control without marginal failure. Further follow-up is required to determine whether normal tissue effects are minimized using this approach.
Original language | English (US) |
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Pages (from-to) | 874-878 |
Number of pages | 5 |
Journal | International Journal of Radiation Oncology Biology Physics |
Volume | 76 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1 2010 |
Keywords
- Conformal
- IMRT
- Margin
- Radiation
- Soft-tissue sarcoma
ASJC Scopus subject areas
- Radiation
- Oncology
- Radiology Nuclear Medicine and imaging
- Cancer Research