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Breast-conserving therapy for macroscopically multiple cancers.

J M Kurtz1, J Jacquemier, R Amalric

  • 1Académie Méditerranéenne d'Oncologie Clinique, Marseille, France.

Annals of Surgery
|July 1, 1990
PubMed
Summary
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Macroscopically multiple breast cancers increase local recurrence risk after conservative surgery and radiotherapy. Early detection and clear surgical margins are crucial for better outcomes in these patients.

Area of Science:

  • Oncology
  • Surgical Oncology
  • Radiotherapy

Background:

  • Stage I-II breast cancers are often treated with conservative surgery and radiotherapy.
  • The presence of multiple macroscopic tumor nodules can affect treatment outcomes.

Purpose of the Study:

  • To evaluate the local failure risk in patients with unilateral, stage I-II breast cancer exhibiting multiple macroscopic tumor nodules.
  • To identify factors influencing local recurrence in these patients.

Main Methods:

  • Retrospective analysis of 586 patients with unilateral stage I-II breast cancer.
  • Comparison of local recurrence rates between patients with single and multiple tumors.
  • Analysis of factors including diagnosis method, number of nodules, and resection margins.

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Main Results:

  • Patients with multiple tumors had a significantly higher local recurrence rate (25%) compared to single tumors (11%).
  • Higher recurrence rates were observed when multiplicity was clinically apparent or involved three or more nodules.
  • Negative resection margins were associated with significantly lower local failure rates.

Conclusions:

  • Macroscopically multiple breast cancers are associated with an elevated risk of local failure.
  • Clinical detection of multiplicity and a higher number of nodules increase this risk.
  • Achieving negative resection margins is critical for improving outcomes in patients with multiple breast tumors.