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.
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。
2
Objective To discuss the causes of pharyngeal fistula after laryngocarcinoma operation.