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Breast MRI after bilateral mastectomy: is it indicated?
Lindi H Vanderwalde1, Catherine M Dang, Robert Tabrizi
1The Saul and Joyce Brandman Breast Center, Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA. lindi.vanderwalde@cshs.org
The American Surgeon
|February 23, 2011
Summary
Breast MRI after bilateral mastectomy has limited utility for detecting new cancers. Routine screening MRI is questionable if no residual breast tissue is found, though it can identify residual tissue.
Area of Science:
- Oncology
- Radiology
- Medical Imaging
Background:
- Limited data exists on breast MRI's role post-bilateral mastectomy.
- Assessing diagnostic and surveillance utility is crucial for patient management.
Purpose of the Study:
- To evaluate the effectiveness and findings of breast MRI in patients following bilateral mastectomy.
Main Methods:
- Retrospective analysis of 79 breast MRIs from 48 women who underwent bilateral mastectomy between 2003-2009.
- Review of indications for MRI, patient demographics, and imaging findings.
Main Results:
- 86% of MRIs showed benign findings; no unsuspected recurrences were detected.
- MRI identified residual breast tissue in some cases and findings outside the breast.
- Locoregional recurrence was confirmed in two patients with suspicious physical findings.
Conclusions:
- Post-mastectomy breast MRI has limited diagnostic value for detecting unsuspected recurrences.
- MRI can confirm residual breast tissue, but routine screening MRI should be reconsidered if none is present.
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