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目的加深对鼻咽癌放疗后茎内异常改变的认识。方法鼻咽癌放疗后茎内改变者39例,均做鼻咽轴位CT平扫,详细对比观察复发与未复发者茎内CT表现。结果鼻咽癌放疗后复发者均表现为茎内增厚致密,而无复发者仅37.04%(10/27)表现为茎内增厚致密。在茎内增厚致密者中,复发病例边缘微凸者9例,平直3例;而无复发病例边缘平直者7例,微凹3例,无1例边缘突出者。上述经统计学处理,均有显著性差异(Ρ<0.05)。结论鼻咽癌放疗后茎内增厚致密提示局部复发,若边缘微凸,则复发的可能性更大。
Objective To deepen the understanding of abnormal changes of stem in nasopharyngeal carcinoma after radiotherapy. Methods Thirty-nine patients with nasopharyngeal carcinoma after radical radiotherapy were treated with CT scan of the nasopharynx. The CT findings in the stem of the recurrent and non-relapsed patients were compared in detail. Results The recurrence of NPC after radiotherapy showed thickening of the thickened stem, while only 37.04% (10/27) of the patients without recurrence showed thickening and thickening of the stem. Among the thickened stems, there were 9 patients with minimally recurrence and 3 patients with straightness. In the non-recurrence patients, there were 7 patients with straight edge and 3 patients with minimally concaved edge. The above statistics, there were significant differences (P <0.05). Conclusion The thickening of the stem in nasopharyngeal carcinoma after radiotherapy suggests local recurrence. If the edge is slightly convex, the recurrence is more likely.