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Factors correlating with reexcision after breast-conserving therapy.
M R Bani1, M P Lux, K Heusinger
1Department of Gynecology and Obstetrics, University Breast Center for Franconia, Erlangen University Hospital, Erlangen, Germany.
Summary
Mammographic density is a newly identified risk factor for reexcision after breast-conserving surgery. Higher density may indicate a need for advanced localization and margin assessment techniques in breast cancer patients.
Area of Science:
- Oncology
- Radiology
- Surgical Pathology
Background:
- Positive tumor margins are critical for local breast cancer control.
- Factors like tumor size and multifocality influence reexcision rates.
- Mammographic density's role in reexcision risk was previously understudied.
Purpose of the Study:
- To evaluate factors influencing reexcision risk after breast-conserving surgery.
- To investigate the association between mammographic density and reoperation.
- To identify predictive markers for repeat operations in breast cancer patients.
Main Methods:
- Retrospective analysis of 565 breast cancer patients undergoing breast-conserving therapy.
- Review of mammographic findings, including density assessment.
- Histopathological analysis and multivariate modeling to identify risk factors for reexcision.
Main Results:
- Reexcision was required in 21.4% of patients; 9.6% ultimately needed mastectomy.
- Tumor size, multifocality, and in situ component were significant risk factors.
- Category 4 mammographic density was associated with increased reoperation risk (OR 3.2).
Conclusions:
- Mammographic density is an independent risk factor for reexcision after breast-conserving surgery.
- High mammographic density can complicate tumor localization, increasing reoperation likelihood.
- Utilizing mammographic density can help identify high-risk patients for enhanced localization and margin assessment strategies.