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下咽癌由于其发病位置特殊,发病位置隐匿,早期症状无特异性;其病理呈现出易黏膜下播散,易发生局部淋巴结转移的特点,容易侵犯颈其他重要结构;术后可能出现咽瘘、吞咽困难等对生活质量影响较大的并发症等。梨状窝癌占下咽癌发病病例70%左右,由于其紧邻喉部,在早期即可直接侵入喉内,造成喉结构和功能的破坏,梨状窝内侧壁癌尤甚。因此喉功能的保留是下咽癌手术中常面临的难题。目前对梨状窝癌的的治疗以手术结合放疗的综合治疗为主,治疗的目的是在实现
Hypopharyngeal cancer because of its special location, the location of occult disease, the early symptoms of non-specific; the pathology showed easy to submucosal disseminated, prone to local lymph node metastasis, easily infringement of other important structures of the neck; postoperative pharyngeal fistula may occur , Dysphagia and other complications that have a greater impact on the quality of life. Li pear-shaped nest cancer accounted for about 70% of cases of hypopharyngeal cancer, due to its close to the throat, in the early stage can directly invade the larynx, resulting in damage to the structure and function of the throat, especially in the pyriform sinus wall cancer. Therefore, the preservation of laryngeal function is often faced with hypopharyngeal cancer surgery problems. The current treatment of pear-shaped nest surgery combined with radiotherapy integrated therapy, the purpose of treatment is to achieve