结论：对下咽癌浸润范围的研究对于手术范围确定和保留喉功能非常重要。
Conclusions: It is very important for determining scope of operation and retaining laryngeal function as much as possible to study the infiltrative range of inferior pharyngeal carcinoma.
手术是喉疣状癌主要的治疗方式，在切除肿瘤的基础上保留喉功能，提高患者生活质量。
The main treatment of verrucous carcinoma is based on complete excision to reserve larynx function and improve the quality of life.
目的：探讨下咽、颈段食管癌根治术患者喉功能保留与发声重建的手术方法。
Objective: To evaluate surgical treatment methods for preserving laryngeal function and voice reconstruction for patients with hypopharyngeal and cervical esophageal carcinoma.
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