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作者收治54例梨状窝鳞癌行根治性放疗。采用兆伏X线或~(60)钴γ线照射,47例为常规分割照射,单次量170～220CGy,11例为每日两次每次120CGy的超分割照射,20例临床颈淋巴结阳性者行计划性放疗后颈清扫术。放疗后局部近期控制率和最终控制率(包括放疗失败采用手术挽救的病例)为:T_18/9和8/9;T_215/20(75%)和18/20(90%);T_32/5和3/5;T_40/4和0/4。根据改良AJCC分期,5年净生存率为:Ⅰ1/1;Ⅱ3/3;Ⅲ5/8;Ⅳ_A7/12;
The authors treated 54 patients with squamous cell carcinoma of the piriform root for radical radiotherapy. MV X-ray or ~(60) Cobalt γ-irradiation was used, 47 cases were routinely divided and irradiated, and the single dose was 170 to 220 CGy. 11 cases were twice daily 120CGy hyperfractionated irradiation, and 20 cases were clinical cervical lymph node positive. The patient undergoes a planned radiotherapy neck dissection. The local short-term control rate and final control rate after radiotherapy (including the case of radiotherapy failure using surgical salvage) were: T_18/9 and 8/9; T_215/20 (75%) and 18/20 (90%); T_32/5 and 3/5; T_40/4 and 0/4. According to the modified AJCC staging, the 5-year survival rate was: I1/1; II3/3; III5/8; IV_A7/12;