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分化型甲状腺癌(differentiated thyroid cancer,DTC)起源于甲状腺滤泡上皮细胞,占甲状腺癌的90%以上,主要包括甲状腺乳头状癌(papillary thyroid carcinoma,PTC)和甲状腺滤泡状癌(follicular thyroid carcinoma,FTC),少数为Hurthle细胞或嗜酸性细胞肿瘤。颈部淋巴结转移是PTC主要的生物学特性之一,约20%~90%PTC诊断时病理证实颈部淋巴结转移,转移部位最常见为同侧颈VI区淋巴结。甲状腺癌患者的颈部淋巴结转移,是复发率增高、存活率降低的危险因素。低分化型
Differentiated thyroid cancer (DTC) originated in the thyroid follicular epithelial cells, accounting for more than 90% of thyroid cancer, including mainly papillary thyroid carcinoma (PTC) and follicular thyroid carcinoma , FTC), a minority of Hurthle cells or eosinophilic tumors. Cervical lymph node metastasis is one of the main biological characteristics of PTC. About 20% ~ 90% of the cases diagnosed by pathology confirmed the cervical lymph node metastasis. The most common metastatic sites were the ipsilateral cervical VI nodes. Cervical lymph node metastasis in patients with thyroid cancer is a risk factor for increased recurrence and decreased survival. Low differentiation type