甲状腺结节为一常见临床征象,在美国发病率占人口的1～7%,而甲状腺癌则相对少见,发病率约0.004%。对甲状腺结节有较大可能为癌肿者选行甲状腺切除,筛选方法包括临床评定、甲状腺功能测定、血清抗甲状腺抗体测定、血清甲状腺球蛋白浓度、核素扫描、超声波检查及结节对外源性甲状腺促甲状腺素(TSH)抑制剂量的反应等。但所有这些检查均不能作 Thyroid nodules are a common clinical sign, accounting for 1 to 7% of the population in the United States, while thyroid cancer is relatively rare, with an incidence of about 0.004%. Patients with thyroid nodules who are more likely to have cancer are selected for thyroidectomy. Screening methods include clinical assessment, thyroid function test, serum anti-thyroid antibody test, serum thyroglobulin concentration, radionuclide scan, ultrasound examination, and nodules. Thyroid thyrotropin (TSH) inhibitors, etc. But all these checks cannot be made