经颏孔前下颌骨劈开径路切除咽旁间隙巨大肿瘤

Resection of Giant Tumors in Parapharyngeal Space Via Parasymphyseal Mandibulotomy

目的:探讨经颏孔前下颌骨劈开径路切除咽旁巨大肿瘤的临床效果。方法:对2007年4月～2012年4月收治的8例咽旁间隙巨大肿瘤,采用下颌骨颏孔前截骨劈开径路,切除咽旁间隙巨大肿瘤进行回顾性分析。结果:所有患者肿瘤完整切除,术后病理诊断均为良性肿瘤,其中腮腺来源6例,神经来源2例,患者术后无面瘫、舌麻木,霍纳综合征等并发症,未发生术后感染。全组病例随访8个月～5年,均未见肿瘤复发。结论:下颌骨颏孔前截骨劈开径路对于咽旁间隙巨大肿瘤视野良好,暴露充分,肿瘤可直视下完整切除,手术安全、可靠。

Objective： To assess the treatment result of the parasymphyseal mandibulotomy approach for the giant parapharyngeal space tumors.Methods： Clinical data of 8 patients with giant parapharyngeal space tumors via parasymphyseal mandibulotomy from April 2007 to April 2012 were studied retrospectively.Results： In all cases the selected parasymphyseal mandibulotomy approach allowed the complete resection of the tumor,all of them were suffering from benign tumors： pleomorphic adenoma（6 cases）and neurilemmoma（2 cases）.There were no complications such as facial nerve palsy,lingual nerve injury,Horner syndrome or infection.All patients were followed up for 8 months to 5 years,and no patient recurred.Conclusion： Parasymphyseal mandibulotomy approach provides maximal exposure of the parapharyngeal space and makes the surgical field clear.It is a safe and effective approach for excision of giant parapharyngeal space tumors.