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Soft tissue sarcomas (excluding rhabdomyosarcoma): radiotherapy applications
National Cancer Institute Monograph
|April 1, 1981
Summary
Radiation therapy (RT) combined with surgery offers excellent local control for soft tissue sarcomas in pediatric patients. Preoperative RT is preferred for smaller treatment volumes and improved functional outcomes.
Area of Science:
- Oncology
- Radiation Oncology
- Pediatric Oncology
Background:
- Soft tissue sarcomas require effective treatment strategies, particularly in pediatric patients.
- Radiation therapy (RT) is a key modality, often used with surgery.
- Optimizing RT sequencing and volume is crucial for functional outcomes.
Purpose of the Study:
- To evaluate the efficacy of radiation therapy (RT) combined with surgery in pediatric soft tissue sarcoma patients.
- To compare preoperative versus postoperative RT sequences.
- To assess the impact of minimal treatment volumes on functional results.
Main Methods:
- Retrospective analysis of 21 patients (≤21 years old) treated with RT and surgery, or RT alone.
- Follow-up of 3 or more years.
- Analysis of local control, disease-free survival, and overall survival by age group and stage.
Main Results:
- All 21 patients achieved local tumor control.
- Disease-free survival rates were 100% (5/5) in the 6-14 age group and 62.5% (10/16) in the 15-21 age group.
- Survival varied by stage in the older group: Stage I (100%), Stage II (57%), Stage III (40%).
- All patients with fibrosarcoma or neurofibrosarcoma were disease-free.
Conclusions:
- Preoperative RT followed by surgery is effective for pediatric soft tissue sarcomas, achieving high local control and good survival rates.
- Minimizing RT treatment volumes is essential for preserving function.
- Chemotherapy is needed for advanced stages (IIB-III).