分化型甲状腺癌主要包括乳头状癌和滤泡癌,占甲状腺癌的90%以上。其最常转移到淋巴结、肺和骨,而颅骨转移罕见,发生率仅有2.5%~5.8%~([1-2]),颅底转移则更为罕见~([3-4])。本文总结2004-11-2016-02收治的3例分化型甲状腺癌颅底转移病例,并复习相关文献,对其临床特点、诊断和鉴别诊断、可能的转移途径及治疗方式进行分 Differentiated thyroid cancer, including papillary and follicular cancer, accounting for more than 90% of thyroid cancer. The most common metastasis to the lymph nodes, lungs, and bones is rare with a 2.5% -5.8% ~ (1-2%) incidence of skull metastases and rarer skull base metastases (3-4). This article summarizes 3 cases of differentiated thyroid cancer skull base metastases admitted from 2004-11-2016-02, and review the relevant literature on its clinical features, diagnosis and differential diagnosis, possible metastasis and treatment methods