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目的 探讨鼻咽癌放疗后鼻咽局部复发的早期CT改变。方法 追踪观察鼻咽癌放疗前后的患者 4 3例 ,其中证实复发者 11例 ;鼻咽显示异常 ,但经追踪观察而否定复发者 32例。结果 将复发与未复发病例的各种CT征象进行比较分析 ,提示在鼻咽癌放疗后局部复发的早期诊断中 ,“茎突内侧软组织增厚致密”为一重要征象 ,而“顶后壁增厚 ,侧壁增厚和咽隐窝变浅或消失”仅起次要作用。结论 茎突内侧软组织处肿瘤复发 ,可能与该部位深在 ,未能接受足量照射有关
Objective To investigate the early CT changes of nasopharyngeal local recurrence after radiotherapy of nasopharyngeal carcinoma. Methods Forty-three patients with nasopharyngeal carcinoma (NPC) before and after radiotherapy were followed up, of whom 11 were confirmed to have recurred. Nasopharyngeal abnormalities were observed. However, 32 patients were rejected after follow-up observation. Results The CT findings of recurrent and non-recurrent cases were compared and analyzed, suggesting that in the early diagnosis of local recurrence after radiotherapy of nasopharyngeal carcinoma, the thickening and thickening of the soft tissue inside the styloid process is an important sign, Thick, thickening of the sidewalls, and shallow or disappearing pharyngeal crypts "only play a secondary role. Conclusion The recurrence of tumors in the medial soft tissue of the styloid process may be related to the fact that the site is deep and failed to receive adequate irradiation