鼻咽癌咽旁间隙侵犯区放疗疗观察

The Effect of Radiation on Nasopharyngeal Carcinoma with Parapharyngeal Space lnvasion

选择我院１９９０年１０月～１９９２年６月间，首次放疗鼻咽癌患者１０４例，通过ＣＴ检查观察鼻咽癌侵犯咽旁的范围及放疗后肿瘤消退情况。结果发现，咽旁肿瘤消退时间与远期控制有关，肿癌消退缓慢，提示预后不良。影响疗效的主要因素是肿瘤的临床分期，临床分期越晚，肿瘤局部复发及远隔转移越多。

e selected 104 cases with nasopharyngeal carciroma,They were irradiated for the first time fromOctober 1990 to June 1992 in our hospital.The invasive range of parapharynx and tumor extinctive de-gree after radiotherapy were observed through CT scan,The time for parapharyngeal tumor to extinctwas related to long-term curative effect.The retardation of tumor extinction indicated unfavourableprognosis. The main factor which affected curative effect was clinical staging. The more advanced thecase curative effect was, the more local recurrence and distant metastasic occurred.