神经鞘瘤是来源于神经鞘的良性肿瘤,可以发生于身体的多数部位。在报道的病案中位于头颈部者占37%。出现于头颈部者,呈单个肿瘤位于皮下或向颈深层发展,生长慢,直到发展到相当大,足以推移或压迫邻近组织才出现临床症状。晚期可压迫周围的感觉神经而出现疼痛。也可压迫周围的血管而听诊有杂音,当肿瘤致咽壁移位时可有吞咽困难。在鉴别颈侧后方或腮腺尾部包块时应考虑到神经鞘瘤的可能性。作者复习了神经鞘瘤的组织学病变,并报道了8例腮腺侧后方深在的神经鞘瘤,来 Schwannomas are benign tumors derived from nerve sheaths that can occur in most parts of the body. 37% of heads and necks were reported in the medical record. Occurring in the head and neck, a single tumor is located subcutaneously or deep into the neck and grows slowly until it develops sufficiently large enough to pass or oppress the neighboring tissue before clinical symptoms occur. In the late stages, the surrounding sensory nerves can be compressed and pain occurs. Can also oppress the surrounding blood vessels and auscultation noise, when the tumor can cause dysphagia when the pharyngeal wall is displaced. The possibility of schwannomas should be considered in identifying the posterior neck or parotid gland mass. The authors reviewed histological lesions of schwannomas and reported 8 cases of schwannomas deep behind the parotid gland.