학술논문
Retroperitoneal liposarcoma: the role of adjuvant radiation therapy and the prognostic factors
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- 영문명
- 발행기관
- 대한방사선종양학회
- 저자명
- Hong Seok Lee Jeong Il Yu Do Hoon Lim Sung Joo Kim
- 간행물 정보
- 『대한방사선종양학회지』제34권 제3호, 216~222쪽, 전체 7쪽
- 주제분류
- 의약학 > 종양학
- 파일형태
- 발행일자
- 2016.09.30
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국문 초록
영문 초록
Purpose: To evaluate the benefit of adjuvant radiation therapy (RT) for retroperitoneal liposarcoma (RPLS) following gross tumor removal.
Materials and Methods: We reviewed 77 patients with primary RPLS surgically treated between January 2000 and December 2013. Cases with gross residual disease were excluded. Tumor grade was evaluated according to the French Federation of Cancer Centers Sarcoma Group (FNCLCC) system. Adjuvant RT was delivered to 32 patients (42%) using external beam RT alone. Median follow-up time was 36 months (range, 5 to 169).
Results: Among 77 patients, 33 (43%) presented with well-differentiated, 31 (40%) with de-differentiated, 8 (10%) with myxoid/ round and 4 (5%) with pleomorphic morphology. The RT group included less well-differentiated subtype than surgery group (28% vs. 53%). During follow up, 34 patients (44%) showed local recurrence. Local recurrence rate was lower in the RT group (38%) compared to the surgery group (49%). The 3-year local control rate (LC) was 55.6%, and the 3-year overall survival (OS) was 82.1%. Tumor histology and FNCLCC grade were significantly associated with local recurrence. There was no statistical significance of adding adjuvant RT in LC (p = 0.312). However, patients with tumor histology other than well-differentiated subtype showed marginally decreased local recurrence rate after adjuvant RT (3-year LC, RT 43.9% vs. no RT 35.3%; p = 0.087).
Conclusion: RPLS patients receiving RT experienced less local recurrence. We suggest that the addition of adjuvant RT may be related to improvement of LCs, especially in patients with non-favorable histologic subtypes.
목차
Abstract
Introduction
Materials and Methods
Results
Discussion and Conclusion
Conflict of Interest
References
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참고문헌
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