电子计算机断层扫描（ＣＴ）用于鼻咽癌（ＮＰＣ）诊断及放射治疗计划设计以来，ＮＰＣ靶容积概念有了新的认识。两侧茎突后间隙受累ＮＰＣ放疗设计仍是目前的研究课题。本文分析了３０例有双侧咽旁茎突后间隙侵犯病人采用五野放射治疗的结果，以探讨该组病人的放疗方法。... Since computer tomography (CT) was used in the diagnosis and radiotherapy planning of nasopharyngeal carcinoma (NPC), the NPC target volume concept has been newly recognized. Adjacent styloid process on both sides of the NPC radiotherapy design is still the subject of current research. This article analyzes the results of 30 patients with bilateral parapharyngeal styloid process clearance violation after the use of five field radiotherapy to explore the group of patients with radiotherapy. ...