肢体软组织肉瘤术后肿瘤瘤床的放疗剂量至少需要达到(1.82.0Gy/F)A.45~50GyB.50~55GyC.55~60GyD.60~65G...

作者: rantiku 人气: - 评论: 0
问题 肢体软组织肉瘤术后肿瘤瘤床的放疗剂量至少需要达到(1.82.0Gy/F)
选项 A.45~50Gy B.50~55Gy C.55~60Gy D.60~65Gy E.65~70Gy
答案 D
解析 :软组织肉瘤术后放疗初始阶段应该根据不同的临床情况控制在肿瘤边缘外5~10cm范围,剂量应达到DT50Gy,肿瘤外2cm边缘区内照射量一般不应低于60~62Gy,高危复发危险区域剂量可达65~70Gy。

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