Ultrasound Evaluation of Axillary Lymph Nodes in Breast Imaging: Practical Criteria for Differentiating Benign and Suspicious Findings

Breast ultrasound frequently includes evaluation of the axillary lymph nodes, particularly in patients with suspected or confirmed breast pathology. Accurate interpretation of lymph node morphology is essential to differentiate benign reactive nodes from potentially malignant involvement. This article provides a concise practical review of the sonographic criteria used to evaluate axillary lymph nodes, including cortical thickness, hilar preservation, nodal shape, and vascular patterns. Understanding these imaging features can help clinicians identify suspicious findings that require further investigation and improve diagnostic confidence in breast imaging practice.