依据食管与气管、主支气管的解剖关系，探讨中晚期食管癌（下称食管癌）对气管、主支气管有无病理解剖学上的损害。我们对食管癌患者１４例，进行了纤维支气管镜（下称纤支镜）检查，发现食管癌与其相对应部位的气管、主支气管粘膜有病理改变，报告如下：１　资料与方法１．１ Based on the anatomical relationship between the esophagus and the trachea and the main bronchus, the pathological and anatomical damage to the trachea and the main bronchus in the advanced esophageal cancer (hereinafter referred to as esophageal cancer) was explored. In 14 cases of esophageal cancer patients, we underwent fiberoptic bronchoscopy (hereinafter referred to as bronchoscopy) and found pathological changes in the trachea and main bronchial mucosa of esophageal cancer and its corresponding sites. The report is as follows: 1 Materials and methods 1.1