彩超对颈部结核性淋巴结和转移性淋巴结的鉴别诊断

Color Doppler differential diagnosis between tuberculous cervical lymphadenitis and metastatic cervical lymph nodes

目的:探讨彩超对颈部结核性淋巴结和转移性淋巴结的鉴别诊断价值。方法:回顾性分析了32例结核性淋巴结和61例转移性淋巴结的内部回声特点、纵横比(L/S)、血流分布及阻力指数(RI),并进行了比较。结果:结核性淋巴结内部可见无回声液化区及强回声钙化灶;转移性淋巴结内部多呈低回声,可有无回声液化区,少有强回声钙化灶。两组之间内部回声的差异有统计学意义(P<0.05),血流分布及RI值的差异亦有统计学意义(P<0.05),L/S值的差异无统计学意义(P>0.05)。结论:彩超检测淋巴结内部回声、血流分布及RI值有助于颈部结核性淋巴结与转移性淋巴结的鉴别诊断。

Objective： To investigate the value of color Doppler ultrasound in identifying tuberculous cervical lymphadenitis and metastatic cervical lymph nodes. Methods： The characteristics, longitudinal/transverse diameter （L/S）, resistance index （RI） and blood typing of 32 patients with tuberculous cervical lymphadenitis and 61 patients with metastatic lymph nodes were analyzed retrospectively. Results： Echo and （or）calcification were present in hypoechoic background in tuberculous cervical lymphadenitis, while dominant hypoecho was found in metastatic lymph nodes with few calcification. Statistical difference of internal echo was found between the two groups （P 〈 0.05 ）. L/S ratio in the two groups showed no differences（P 〉 0.05 ）. Blood flow signal and RI in the tuberculous cervical lymphadenitis from metastatic lymph nodes had significance（P 〈0.05）. Conclusion： Internal echo, blood flow signal and RI can be used to differentiate tuberculous cervical lymphadenitis from metastatic cervical lymph nodes.