Paragangliomas of head and neck are rare tumors that occur sporadically with the prevalence of about1 in30,000 of head and neck tumors. 摘要头颈部副神经节瘤是一罕见偶发的疾病，盛行率约占所有头颈部肿瘤的三万分之一。
Head and neck cancers comprise cancer of the oral cavity, salivary glands, sinuses and nasal cavity, pharynx, larynx and lymph nodes in the upper neck area. 头颈部肿瘤包括口腔癌，唾液腺癌，鼻窦和鼻腔癌，咽癌，喉癌和淋巴结癌等上颈部肿瘤。
