作者认为咽旁间隙肿瘤仍有许多未解决的问题。由于咽旁间隙,尤其咽侧间隙解剖复杂良性肿瘤病因不清,生长缓慢,早期多无症状,因此在诊断和治疗上均有困难。多半在肿瘤已长大,出现咽部症状或颈部隆起才被发现。咽旁肿瘤治疗唯有手术。手术可采用不同的进路,主要根据肿瘤生长的位置、大小和性质决定。作者介绍一种经下颌骨摘除肿瘤的径路,可提供充分的手术野,便于摘除操作和避免损伤神经与血管的精细结构。作者采用外经路16例,成功13例,其他3例采用了保守的经下颌骨的途径。这种手术方法是: The authors believe that there are still many unsolved problems in parapharyngeal space tumors. Due to the parapharyngeal space, especially the pharyngeal space anatomy complex benign tumor etiology is unclear, slow growth, early asymptomatic, so in the diagnosis and treatment are difficult. Most of the time when the tumor has grown up, pharyngeal symptoms or neck uplift have been discovered. Pharyngeal tumor treatment only surgery. Different approaches can be used for surgery, which are mainly based on the location, size and nature of the tumor growth. The authors describe a way to remove tumors from the mandible and provide sufficient surgical field to facilitate removal and avoid damage to the fine structures of nerves and blood vessels. The authors used the external meridians in 16 cases, 13 cases were successful, and the other 3 cases used the conservative way of mandibular bone. This surgical method is: