Correlation Between Ultrasound Findings And Lymph Node Metastasis In ? Cervical Regions Of Thyroid Papillary Carcinoma

Objective: To study the correlation between the ultrasound image table of papillary thyroid carcinoma(Papillary Thyroid cancer,PTC)and lymph node metastasis in the VI region of the neck,so as to evaluate and predict the risk of lymph node metastasis,in order to explore an effective,accurate and reliable method to improve the accuracy of preoperative ultrasound diagnosis of lymph node metastasis.Methods: Using the retrospective analysis method,the preoperative ultrasound image data and clinicopathological features of 346 patients with papillary thyroid carcinoma confirmed by surgery and pathology in our hospital from January 2017~ December 2018 were studied and analyzed.According to the postoperative pathological results,they were divided into cervical VI lymph node metastasis group and cervical VI region lymph node non-metastasis group.Results: Among 346 PTC patients,there were 200 cases of metastasis and 146 cases without metastasis.The sensitivity,specificity,positive predictive value,negative predictive value and accuracy of preoperative ultrasound diagnosis of lymph node metastasis in the VI region of the neck of PTC patients were51.5%,74.7%,73.6%,52.9% and 61.3%,respectively,using pathological results as gold standard.Univariate analysis showed solid or cystic solid,male patients,extremely hypoechoic or hypoechoic,dot strong echo or coarse calcification,age ?45 years old,normal thyroid background,ultrasound indicated that lymphadenopathy in the VI region of the neck was prone to lymphadenopathy in the VI region of the neck node metastasis,the difference was statistically significant(P<0.05).Multivariate analysis showed that: age?45 years old,ultrasound showed that lymph node enlargement in the VI area of the neck,male patients,and punctate strong echo in the lesion were independent risk factors forlymph node metastasis in the VI area of the neck,the difference was statistically significant(P<0.05).Conclusion : The diagnostic PTC of routine ultrasound and clinicopathological features before operation and the assessment of risk of lymph node metastasis in cervical VI area have certain significance,which can provide some reference basis for clinical staging,selection of surgical methods and evaluation of prognosis.