MRI study of lymphatic vascular invasion in breast cancer patients
Objective To analyze the magnetic resonance imaging(MRI)features of lymphatic vascular invasion in breast cancer patients.Methods Totally 80 cases of breast cancer from June 2020 to June 2022 were analyzed retro-spectively.The patients were divided into invasive group(n=25)and non-invasive group(n=55)according to the lymphatic vessel infiltration confirmed by preoperative MR examination and postoperative pathology.The clinical data,MRI signs,MRI manifestations,time-intensity curve(TIC)types of the two groups were compared,and the diag-nostic efficacy of MRI was analyzed.Results Compared with the non-invasive group,the proportion of axillary lymph node enlargement and peritumoral edema in the invasive group increased,and the ADC value decreased,the difference was significant(P＜0.05).Compared with the non-invasive group,the proportion of MRI edge burr,edge blur,and internal necrosis in the invasive group increased significantly(P＜0.05).Compared with the non-invasive group,the proportion of patients with TIC type Ⅲ in the invasive group increased significantly(P＜0.05).Based on the pathological examination results as the gold standard,27 cases of lymphovascular invasive lesions of breast cancer were found on MRI,accounting for 31.40％,and 59 cases of non invasive lesions,accounting for 68.60％.The diagnostic accuracy,sensitivity and specificity of MRI were 88.89％,93.22％and 91.86％respec-tively.Conclusion MRI has certain diagnostic value for lymphatic vascular invasion in patients with breast cancer.Most patients show axillary lymph node enlargement,peritumoral edema,decreased ADC value,and MRI edge burrs,blurring,and internal necrosis.At the same time,the monitoring of TIC Ⅲ patients should also be strengthened.
Breast cancerLymphatic vessel infiltrationMagnetic resonance imagingImage Features
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