Methods: 26 patients with carcinoma of esophagus were studied clinically by diffusiontherapy method with 5-131I-iodouracil(5-131IU)as tracer agent.

• 方法：用5-131I尿嘧啶作为示踪剂，对26例食管癌患者进行了临床渗透治疗的研究。