我科自1985年至1988年6月对中晚期食管癌进行俯卧位同中心三野交叉照射治疗。现对随访到的83例进行初步分析如下: 临床资料性别:男性55例,女性28例。男:女=1.9:1。年龄以40岁至69岁占90.3％;病变长度在5cm以上占所有病人数的70％以上。病变部位主要是中下段。X线分型髓质型占73.4％,其他如溃疡型、蕈 In our department, from 1985 to June 1988, we performed prone position treatment of middle and late esophageal cancer in the prone position with three centers of the same cross. A preliminary analysis of the 83 cases following follow-up is as follows: Clinical data Gender: 55 males and 28 females. Male: Female = 1.9:1. Ages ranged from 90% to 90% for patients aged 40 to 69 years; lesion lengths above 5cm accounted for more than 70% of all patients. The lesion is mainly in the middle and lower segments. X-ray classification of medullary type accounted for 73.4%, others such as ulcer type, fistula