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作者对Anderson医院从1949至1976年间的30例鼻咽复发癌病人,施行了再照射治疗。30例中,鳞状上皮癌16例,淋巴上皮癌14例。鳞癌中有9例复发仅限于鼻咽局部,6例复发超出鼻咽,1例资料不详。淋巴上皮癌中5例复发局限鼻咽,9例超出鼻咽。 30例鼻咽癌的第一次照射,用常规X线治疗机-2例,~(60)Co机-6例、高能X线(18～25Mev)22例。对穿侧野、每天200rad,每周5次。野面积一般6×6 cm或用6 cm直径的园野,摄片证明颅底病变者,用8×8 cm野。剂量11例≥6000rad,2例5000rad,7例≤4000rad,治疗后1年内复发的有7例,大部份在3年内复发占73.3%(22例)。10年以上复发者2例。
The authors performed re-radiation therapy on 30 patients with recurrent nasopharyngeal cancer at Anderson Hospital from 1949 to 1976. Of the 30 cases, 16 had squamous cell carcinoma and 14 had lymphoepithelial carcinoma. In 9 cases of squamous cell carcinoma, recurrence was limited to the nasopharyngeal area, 6 cases had recurrence beyond the nasopharyngeal, and 1 case was unknown. In lymphoepithelial carcinoma, 5 cases of recurrence limited the nasopharyngeal, and 9 cases exceeded the nasopharyngeal. The first irradiation of 30 cases of nasopharyngeal carcinoma was performed with conventional X-ray machine - 2 cases, ~ (60) Co machine - 6 cases, and high-energy X-ray (18 ~ 25 MeV) in 22 cases. For wearing field, 200rad per day, 5 times per week. Wild field area is generally 6 × 6 cm or 6 cm diameter garden field, photographic evidence of skull base lesions, with 8 × 8 cm field. The doses were 11 cases of ≥ 6000 rad, 2 cases of 5000 rad, and 7 cases of ≤ 4000 rad. There were 7 cases of recurrence within 1 year after treatment, and most of them recurred within 7 years (73.3%) (22 cases). More than 10 years of recurrence in 2 cases.