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追踪观察了鼻咽癌放疗后的患者４３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。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，说明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。
Follow-up observation of nasopharyngeal carcinoma patients after radiotherapy in 43 cases, of which 11 cases were confirmed relapse; nasopharyngeal abnormalities, but after follow-up observation and negative relapse in 32 cases. Comparisons of various CT signs of recurrent and non-recurrent cases suggest that in the early diagnosis of local recurrence after radiotherapy of nasopharyngeal carcinoma, “the thickening of dense soft tissue inside the styloid process” is an important sign, and “thickening of the posterior wall , Thickening of the sidewall and shallow or disappearance of the pharyngeal crypts ”only play a secondary role, indicating that the recurrence of tumors within the soft tissue of the styloid process may be related to deep in the site, failed to receive adequate irradiation.