甲状腺癌是最常见的内分泌系统恶性肿瘤,占全身恶性肿瘤的0.2%～1.0%,是严重威胁人类健康和影响人们生活的疾病。近年发现肿瘤基因在肿瘤细胞中的表达与多种肿瘤生物行为密切相关。我们通过研究Ki-67蛋白在良、恶性甲状腺肿瘤中的表达情况,探索其在鉴别甲状腺肿瘤的良、恶性及 Thyroid cancer is the most common endocrine system malignant tumor, accounting for 0.2% to 1.0% of systemic malignant tumors, is a serious threat to human health and affect people’s lives. In recent years, it has been found that the expression of tumor genes in tumor cells is closely related to many kinds of tumor biological behaviors. By studying the expression of Ki-67 in benign and malignant thyroid tumors, we explored its significance in differentiating thyroid tumors from malignant ones