咽旁间隙的肿瘤仅占头颈部肿瘤的0.5%[1],病理多样化,90%为良性,主要来源于神经、血管、淋巴组织、结缔组织及脂肪组织等,部分来自于临近各壁,如腮腺深叶等[2]。而神经鞘瘤是发生自神经鞘膜细胞的良性肿瘤,任何神经均可发生,头颈部为好发部位之一,约占全身神经鞘瘤的25%~45%[3],但发生在咽旁间隙者较为少见。咽旁间隙解剖区域隐蔽、深在,常形成较大的肿瘤,肿瘤周围有许多重要的神经、血管,手术切除为 Parapharyngeal space tumors account for only 0.5% of head and neck tumors [1], pathological diversification, 90% of the benign, mainly from the nerves, blood vessels, lymphoid tissue, connective tissue and adipose tissue, and some come from the adjacent walls , Such as parotid deep leaves [2]. Schwannoma is a benign tumor arising from the nerve sheath cells, any nerve can occur, the head and neck as one of the predilection sites, accounting for 25% to 45% of systemic schwannoma [3], but occurred in Parapharyngeal space is more rare. The parapharyngeal space dissection area hidden, deep, often forming a larger tumor, the tumor has many important nerves, blood vessels, surgical resection