分化型甲状腺癌是最常见的甲状腺恶性肿瘤,包括乳头状癌和滤泡状癌2种。其中,乳头状癌分化较好,生长缓慢,属低度恶性,约占甲状腺癌的70%;滤泡状癌发展较快,常有血管侵犯,属中度恶性,约占甲状腺癌的15%。分化型甲状腺癌总体上预后良好,但由于早期无特异性表现,影像学检查有时又 Differentiated thyroid carcinoma is the most common thyroid malignancy, including papillary carcinoma and follicular carcinoma. Among them, papillary carcinoma has good differentiation, slow growth, which is low grade, accounting for 70% of thyroid cancer; follicular carcinoma develops rapidly, often with vascular invasion, and is moderately malignant, accounting for 15% of thyroid cancer. . Differentiated thyroid cancer generally has a good prognosis, but imaging studies sometimes occur due to early non-specific manifestations.