甲状腺癌是最常见的一类内分泌恶性肿瘤 ,根据组织来源可分为滤泡细胞癌和滤泡旁细胞癌 ,不同组织类型的甲状腺癌其恶性程度亦不相同 ,但都具有侵袭性强和易转移的特点。乳头状癌的转移方式多为淋巴结转移 ,未分化癌多发生血行转移及局部侵犯 ,转移和复发往往导致肿瘤治疗失败 Thyroid cancer is the most common type of endocrine malignant tumor, according to the source of tissue can be divided into follicular cell carcinoma and follicular para-cancerous tissue, thyroid cancer of different tissue types are not the same degree of malignancy, but both have aggressive and easy Transfer characteristics. Most of the metastatic papillary carcinoma of lymph node metastasis, undifferentiated cancer and hematogenous metastasis and local invasion, metastasis and recurrence often lead to the failure of cancer treatment