目的 探讨乳腺癌的影像学特征 及其与淋巴结转移的关系。方法 回顾收 集我院120例乳腺癌患者影像学资料，所 有患者均进行B超检查，并经手术病理证 实为乳腺癌，根据是否合并淋巴结转移分 为转移组与未转移组，分析两组影像学 成像特点，并判断其诊断的灵敏度、特 异度、阳性预测值、阴性预测值、准确 率，并探讨淋巴结转移的影像学特征。结 果 经病理检查确定转移组38例，未转移 组82例，经B超诊断依次为42例、78例，B 超诊断乳腺癌淋巴结转移的灵敏度、特异 度、准确率、阳性预测值、阴性预测值依 次为84.2％、87.8％、86.7％、76.2％、 92.3％；淋巴结转移超声成像是以偏心增 厚型为主要皮质形态，其血流形态为周边 型为主，内部回声无不均匀；未转移组主 要皮质形态为狭窄型，其血流形态为淋巴 门型，内部均匀低回声或无回声。结论 乳腺癌患者进行超声检查可作为淋巴结转 移的一项判断标准，为乳腺癌患者治疗提 供参考。

Objective To investigate the imaging findings of breast cancer and the relationship with lymph node metastasis. Methods The imaging data of 120 patients with breast cancer in our hospital were analyzed retrospectively. All the patients were examined by B-mode ultrasonography and confirmed by surgery and pathology. They were divided into the metastasis group and non-metastasis group. Imaging findings of the two groups were analyzed, and the diagnostic sensitivity, specificity, positive predictive value, negative predictive value and accuracy rate of the imaging findings were also analyzed. Imaging findings of lymph node metastasis were discussed. Results Pathological examination confirmed that there were 38 cases in metastasis group and 82 cases in nonmetastasis group, while there were 42 cases and 78 cases diagnosed by ultrasonography. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of B-mode ultrasonography in the diagnosis of lymph node metastasis of breast cancerwere 84.2％, 87.8％, 86.7％, 76.2％, 92.3％. The imaging findings of patients with metastasis included eccentric thickening as the main cortical form with axillary lymph node metastasis, peripheral type blood flow and even internal echo. The imaging findings of patients without metastasis included stenosis type cortex, lymphatic typeblood flow and internal homogeneously hypoechoic or anechoic. Conclusion Ultrasonography of patients with breast cancer can be used as a criterion for diagnosis of lymph node metastasis, which provides references for the treatment of breast cancer.