本文通过４例经颌颈联合侧入路并切断下颌骨升支，切除咽旁隙原发巨大肿瘤病例的报告，详细介绍了咽旁隙解剖位置的特殊性，原发于该部位肿瘤的临床特点，诊断方法及具体的手术步骤。全面分析了此手术入路的优点与缺陷，并对术中应注意的问题进行了阐述。作者认为此手术入路暴露良好，便于操作，变通术式容易，术后功能障碍较轻，对咽旁隙内原发巨大肿瘤的切除尤为适宜 In this paper, 4 cases of maxillary and neck combined with lateral approach and cut off the mandibular ascending branch, the removal of parapharyngeal gigantic tumor cases reported in detail the anatomical location of the parapharyngeal gap particularity of the primary tumor in this part of the clinical Features, diagnostic methods and specific surgical steps. A comprehensive analysis of the advantages and disadvantages of this surgical approach, and the intraoperative problems should be noted. The authors believe that the surgical approach is well exposed, easy to operate, easy to change surgical procedures, postoperative dysfunction is light, the removal of the primary giant tumor in the parapharyngeal space is particularly appropriate