众所周知，甲状腺癌的预后与病理类型有关，未分化型及髓样癌约占２０％，恶性程度高，５年生存率几乎等于零，而分化型（包括乳头状型和滤泡状型）约占８０％，恶性程度较低。５年生存率达９０％以上。术后给予辅助治疗以及应用甲状腺素替代治疗和如何替代治疗才能提高远... It is well known that the prognosis of thyroid cancer is related to the pathological type. Undifferentiated and medullary cancers account for about 20%. The degree of malignancy is high, the 5-year survival rate is almost zero, and the differentiation type (including papillary and follicular type) accounts for approximately 80%, the degree of malignancy is low. The 5-year survival rate is over 90%. Postoperative adjuvant therapy and the use of thyroid hormone replacement therapy and how to replace the treatment can improve far...