What should you know?
Axillary nodes may enlarge because of infection, vaccination, skin or breast conditions and, less commonly, malignancy. Ultrasound evaluates their shape and internal architecture.
Breast ultrasound evaluates a lump, cyst, focal pain and axillary lymph nodes. Depending on age and symptoms, it may be the first test or an adjunct to mammography.
Common symptoms and signs
- Oval shape and preserved fatty hilum
- Cortical thickness and symmetry
- Vascular pattern
- Relationship to infection, vaccination or a breast lesion
Diagnosis and the role of ultrasound
The radiologist documents shape, margins, orientation, contents and vascularity and may assign a BI-RADS category. Ultrasound does not always replace mammography or biopsy.
- Solid or fluid-filled character
- Shape, margins and orientation
- Vascularity and surrounding tissue
- Appearance of axillary lymph nodes
Ultrasound findings must be interpreted together with symptoms, examination and, when needed, laboratory or other imaging results. An image alone should not be used for self-diagnosis or self-treatment.
Treatment and next steps
A persistent, enlarging or suspicious node may need breast-specialist review or needle sampling. Management follows the BI-RADS category and clinical risk and may include routine screening, short-interval follow-up, mammography or biopsy.
Management is individual and depends on age, symptoms, imaging findings, other health conditions and pregnancy plans. Medication or a procedure should be selected with the appropriate clinician.
When is urgent care needed?
- A new hard or rapidly enlarging lump
- Skin retraction, bloody nipple discharge or new nipple inversion
- Redness and warmth accompanied by high fever
Related reading
- Breast lump — what does the radiologist assess with ultrasound?
- Enlarged lymph nodes — causes and diagnosis
- Breast ultrasound
When should you consult radiologist Lana Ezieshvili?
Radiologist Lana Ezieshvili performs targeted ultrasound examinations, describes findings using standard imaging criteria and explains the report in clear language.
If you have symptoms, a referral or need follow-up imaging, use the form below to book a visit with Lana Ezieshvili. Timely, appropriately selected imaging can reduce uncertainty and help determine the right next step.
This article is for education and does not replace medical advice. Seek urgent care for severe or rapidly worsening symptoms.