良性神经鞘膜瘤最常见的部位是成人的咽旁间隙,但却罕见于7岁以下儿童,Gupta等报道303例,44.87%发生于头颈部,仅12%为儿童及少年病例。良性神经源性肿瘤包括神经纤维瘤、神经鞘膜瘤和神经节瘤,前二类均常见于咽旁间隙;后者很罕见于颈部,可能源起自神经管外膜及神经嵴,可发生于交感神经链(可能会分泌儿茶酚胺、产生阵发性高血压)、 The most common site of benign nerve sheath tumors is the parapharyngeal space in adults, but it is rare in children under 7 years of age. Gupta et al reported 303 cases, 44.87% occurred in the head and neck, and only 12% were children and juvenile cases. Benign neurogenic tumors include neurofibromas, nerve sheath tumors, and ganglionomas. The first two categories are common in the parapharyngeal space; the latter are rare in the neck and may originate from the outer membrane of the neural tube and neural crest. Occurs in the sympathetic chain (may produce catecholamines, produce paroxysmal hypertension),