不同病理类型甲状腺癌颈部转移淋巴结的声像图分析

目的探讨不同病理类型甲状腺癌颈部转移淋巴结的声像图特征。方法分析75例甲状腺癌颈部转移淋巴结的声像图的特点，其中乳头状癌50例，滤泡癌8例，髓样癌10例，未分化癌7例。结果甲状腺乳头状癌颈部转移性淋巴结局部可见团状偏高回声，部分淋巴结内可见沙砾样的微小钙化点，局部或整体可出现囊性变；甲状腺髓样癌颈部转移性淋巴结皮髓质分界不清，部分转移性淋巴结内也可见沙砾样的微小钙化点，但未见囊性变；滤泡癌和未分化癌颈部转移性淋巴结纵横比缩小，近似球形，皮髓质分界不清，淋巴门结构消失，呈低回声，均未见微小钙化点和囊性变。结论不同病理类型的甲状腺癌颈部转移淋巴结具有不同的声像图特征，病变淋巴结的超声表现与其病理改变密切相关。

Ultrasonographic analysis of cervical metastatic lymph nodes in different pathological types of thyroid carcinoma

Objective To investigate the sonographic features of cervical metastatic lymph nodes in different pathological types of thyroid cancer. Methods Seventy - five cases of cervical metastatic lymph nodes in thyroid cancer were enrolled in this study, their sonographic characteristics were analyzed. There were 50 cases of papillary carcinoma, 8 cases of follicular carcinoma, l0 cases of medullary carcinoma, 7 cases of undifferentiated carcinoma. Results The manifestation of metastatic cervical lymph nodes from papillary thyroid carcinoma were as follows： local high- echo mass, tiny sand- like microcalcifications were seen in partial lymph nodes, cystic changes were found in partial or entire of the lymph nodes . The manifestation of metastatic lymph nodes from medullary thyroid cancer were as follows ： unclear demarcation of lymph node cortex and medulla, tiny sand -like calcifications were seen in partial metastatic lymph nodes with no cystic changes. And the manifestation of metastatic cervical lymph nodes from follicular carcinoma and undifferentiated carcinoma showed aspect ratio was decreased, spherical - like, unclear demarcation of cortex and medulla, lymph hilar structure disappeared with low level echo, and no microcalcifications and cystic changes were found. Conclusion The metastatic lymph nodes in different pathological types of thyroid cancer have different sonographic features. Sonographic features of lymph node are closely related to its pathology.