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[Small breast carcinomas--less axillary surgery?].

F Gambazzi1, M Zuber, D Oertli

  • 1Departement Chirurgie, Universität Basel.

Swiss Surgery = Schweizer Chirurgie = Chirurgie Suisse = Chirurgia Svizzera
|July 14, 2000
PubMed
Summary
This summary is machine-generated.

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Axillary lymph node involvement in small breast cancers (pT1) is rare and depends on tumor size. Routine axillary dissection may not benefit most patients, but sentinel lymph node (SLN) biopsy offers a selective approach.

Area of Science:

  • Oncology
  • Surgical Oncology
  • Breast Cancer Research

Context:

  • Screening mammography increases detection of small breast cancers (pT1).
  • Current axillary procedures for small breast cancers require careful risk-benefit evaluation.
  • The sentinel lymph node (SLN) procedure is emerging as a selective approach.

Purpose:

  • To investigate the incidence of pT1 breast carcinoma.
  • To analyze axillary lymph node involvement in pT1a, pT1b, and pT1c tumors.
  • To evaluate axillary relapse and overall survival rates in patients with small breast cancers.

Summary:

  • 185 patients with breast cancers ≤20 mm were analyzed (1983-1997).
  • Axillary involvement correlated with tumor size: 0% in pT1a, 10% in pT1b, and 30% in pT1c.

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  • No axillary relapse was observed; 10-year survival rates were 100% (pT1a), 91% (pT1b), and 74% (pT1c).

    • Impact:

    • Findings suggest axillary lymph node involvement in small breast cancers is infrequent.
    • Routine axillary lymphadenectomy may pose unnecessary risks for many patients.
    • The study supports the utility of selective axillary staging, like SLN biopsy, for small breast cancers.