甲状腺癌(简称甲癌)的发病约占全身恶性肿癌的1.2～3.2%,国内普查统计其发病率为11.44/10万。甲癌约有80%分化良好,如乳突状腺癌、滤泡状腺癌及混合细胞癌;低度分化者有髓样癌及未分化癌。甲癌早期治疗的远期疗效可达80%左右,故早期诊断甲癌是治疗成败的关键。现就其诊断及有关问题作一探讨。 The incidence of thyroid cancer (abbreviated as type A cancer) accounts for 1.2 to 3.2% of malignant tumors in the body, and the incidence in domestic census is 11.44/lakh. About 80% of the cancers are well-differentiated, such as papillary adenocarcinoma, follicular adenocarcinoma, and mixed-cell carcinoma; low-grade differentiation is medullary carcinoma and undifferentiated carcinoma. The long-term efficacy of early treatment of A cancer can reach 80%, so early diagnosis of A cancer is the key to success or failure. We will now discuss its diagnosis and related issues.