Abstract:Objective To investigate the diagnostic value of high-frequency ultrasound-guided core needle biopsy (CNB) in cervical and supraclavicular lymphadenopathy.Methods A total of 145 patients with lymph node lesions in the neck and supraclavicular fossa (145 lymph nodes) admitted to Qinghai Provincial People's Hospital from February 2020 to August 2021 were selected, and the clinical diagnosis of these lymph node lesions were determined. The pathological diagnosis of cervical and supraclavicular lymphadenopathy was compared in patients with different clinical features, and the diagnosis determined via high-frequency ultrasound-guided CNB was compared with that determined via pathology. The diagnostic performance of high-frequency ultrasound-guided CNB for cervical and supraclavicular lymphadenopathy was analyzed with pathological findings as the gold standard.Results The malignancy rate of the lymph node lesions in patients with an age of 45 years and older was higher than that of the lymph node lesions in those aged less than 45 years (P < 0.05). There was no difference in the malignancy rate between male and female patients or among patients with lymph node lesions with different short to long axis ratios (P > 0.05). Of the 145 cervical and supraclavicular lymph node lesions, 100 cases (71 cases of tumor metastasis, 24 cases of lymphoma, 1 case of reactive lymphoid hyperplasia, and 4 cases of tuberculous lymphadenitis) were diagnosed as malignant and 45 (1 case of tumor metastasis, 1 case of lymphoma, 32 cases of reactive lymphoid hyperplasia, and 11 cases of tuberculous lymphadenitis) were diagnosed as benign by the high-frequency ultrasound-guided CNB. The pathology determined that 97 cases (72 cases of tumor metastasis and 25 cases of lymphoma) were malignant and 48 (33 cases of reactive lymphoid hyperplasia and 15 cases of tuberculous lymphadenitis) were benign. The sensitivity, specificity and accuracy of high-frequency ultrasound-guided CNB in the diagnosis of cervical and supraclavicular lymph node lesions were 97.94% (95% CI: 92.03%, 99.64%), 89.58% (95% CI: 76.56%, 96.10%), and 95.17% (95% CI: 89.93%, 97.87%).Conclusions High-frequency ultrasound-guided CNB has high diagnostic efficacy in cervical and supraclavicular lymphadenopathy, and can be used as a preferred choice for clinical diagnosis of cervical and supraclavicular lymphadenopathy.