Axillary lymphadenectomy: a diagnostic and therapeutic procedure

Area of Science:

• Surgical Oncology
• Cancer Treatment
• Clinical Research

Background:

• Axillary dissection is a cornerstone of surgical oncology for primary operable cancer.
• Current evidence supports its role in achieving excellent local control, with failure rates between 0-2%.

Discussion:

• The study challenges the notion that axillary dissection is unnecessary for small lesions (T1A), citing a 15% risk of axillary disease.
• Axillary sampling is deemed insufficient due to the high probability of missed, resectable disease.
• Axillary recurrence is linked to significant morbidity and mortality, underscoring the need for thorough local control.

Key Insights:

• Axillary dissection improves long-term and disease-free survival, particularly in node-positive patients.
• It provides the most accurate prognostic information for guiding further therapeutic interventions.
• The NSABP B-04 trial suggests that aggressive local control via axillary dissection may prevent systemic failures.

Outlook:

• Future advancements like PET scanning or sentinel node mapping may identify patients who can avoid axillary dissection.
• The study emphasizes that no current alternative diagnostic or therapeutic approach matches the comprehensive benefits of axillary dissection.
• Preserving potentially resectable disease in the axilla is not beneficial for primary operable carcinoma.