方法：通过改进硬腭切口，保护腭大动脉，扩大鼻咽癌原发灶切除范围。

Method: the artery palatine major was protected and the resection domain of primary lesion of NPC was expanded by modified hard palatine incision.

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方法：通过改进硬腭切口，保护腭大动脉，扩大鼻咽癌原发灶切除范围。

Method: the artery palatine major was protected and the resection domain of primary lesion of NPC was expanded by modified hard palatine incision.

youdao