目的：復發鼻咽癌接受立體定位 X 光刀及同平面七照野體外放射治療，追蹤達 32 個月之病例報告。材料與方法：病例為接受放射治療後一年發生復發之鼻咽癌患者，其接受了二度空間同平面七照野之體外放射治療，劑量為 50.4 Gy。 再接受立體定位 X 光刀，取 2 個等劑量中心，治療體積為 41.75 立方公分，給予劑量於 80% 等劑量曲線處為 10 Gy。結果：復發腫瘤治療後追蹤 32 個月仍無局部腫瘤進行的跡象，以及相關後遺症的產生。結論：在追蹤 32 個月後，仍維持局部腫瘤的控制，亦無相關後遺症產生。比起對復發鼻咽癌傳統的治療，包括手術、化學治療、放射近接治療及體外放射治療而言，多照野體外放射治療合併之立體定位 X 光刀手術，在不降低局部腫瘤之控制下可減少後遺症。 但仍需要長期評估對末期反應組織之影響。

　　　　　Purpose:To report a case of locally recurrent nasopharyngeal cancer (NPC) remaining disease-free 32 months after 7 portals of co-planar external beamsMaterials and Methods: A NPC patient recurred at one year after the first localirradiation. He then was treated with a dose of 50.4 Gy external radiotherapydelivered by 7 portals of co-planar beams and followed by 10 Gy LINAC-basedstereotactic radiosurgery. In radiosurgery, the dose was delivered by using of2 isocenters and prescribed at the 80% isodose curve. The treatment volume was41.75 cubic centimeter.results:After 32 months of follow up, no local recurrence or adverse effect isrecognized.Conclusion: Multiple portals of co-planar external beam radiotherapy andradiosurgery in treating recurrent NPC is successful in local control and lesscomplication than single treatment modality such as operation, chemotherapy,brachytherapy and regular external radiotherapy. Long-term follow up isnecessary for further evaluation in late effect on critical organs of this kindof combined treatment modalities.