随机取我科食管癌标本50例,性别、年龄不限。测量食管肿瘤大小及其至食管上、下切端的距离。自距离肿瘤边缘0.5cm处开始取材,光镜观察肿瘤细胞之浸润状况。观察结果表明:距肿瘤上缘2cm及距其下缘3cm处,已基本不见肿瘤细胞。这一数据可以作为手术切除食管癌时的参考。 Randomly taken 50 cases of esophageal cancer specimens in our department, with no limitation on gender and age. The esophageal tumor size and its distance to the upper and lower esophagus were measured. The material was taken at a distance of 0.5 cm from the edge of the tumor and the infiltrating condition of the tumor cells was observed with a light microscope. Observations showed that tumor cells were virtually absent from 2 cm above the tumor edge and 3 cm from the lower edge of the tumor. This data can be used as a reference for surgical removal of esophageal cancer.