食管癌是原发于食管粘膜上皮的恶性肿瘤,其治疗方法的选择应根据患者的病期、病变部位、一般情况及有无转移等来决定。临床所见食管癌多为中晚期,尤其颈段、胸上段食管癌,肿瘤易向周围浸润,且解剖结构复杂,手术难度较大,易发生合并症,不宜首选手术治疗。而食管癌病理90%以上为? Esophageal cancer is a malignant tumor of primary esophageal mucosa. The choice of treatment should be based on the patient’s stage of disease, the site of the lesion, the general situation, and the presence or absence of metastasis. Clinical findings of esophageal cancer mostly in the late stage, especially in cervical, upper thoracic esophageal cancer, the tumor easily infiltrated to the surrounding, and the anatomical structure is complex, the operation is more difficult, prone to complications, should not be the preferred surgical treatment. The pathology of esophageal cancer more than 90% for?