Comparison of Diagnostic Sensitivity and Procedure-Related Pain of Concurrent Ultrasound-guided Fine-needle Aspiration and Core-needle Biopsy of Axillary Lymph Nodes in Patients with Suspected or Known Breast Cancer

Abstract Objective Conflicting data exist on the diagnostic sensitivity of core-needle biopsy (CNB) compared to fine-needle aspiration (FNA) in evaluation axillary lymph node metastasis from breast cancer. Our purpose was evaluate CNB and FNA using subsequent surgery as gold standard compare patients’ subjective pain levels for each method. Methods This IRB-approved prospective study enrolled 140 patients February 2014 May 2019 with known or suspected Patients underwent both US-guided 14-gauge same clip placement rated their level a verbal numerical rating scale 0 10. The sensitivities were determined by pathology surgically excised McNemar test correlated proportions. Changes scores Wilcoxon rank sum test. Results A total 94 had confirmatory excision biopsied nodal detected 71.3% (67/94). detection 95.5% (64/67), while 67.2% (45/67) (P < 0.05). Overall score ratings increased 0.6 baseline an 11-point scale, overall decreased 0.2 Conclusion demonstrates that has superior metastases mildly 25-gauge