 IMAGING FINDINGS:
Axial subtraction image demonstrates homogenous segmental non-mass enhancement in the lateral right breast. WHY IT MATTERS:
FURTHER READING: ACR BI-RADS Atlas Fifth Edition
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 IMAGING FINDINGS:
Axial Maximum Intensity Projection (MIP) image of the breasts demonstrates regional non-mass enhancement occupying the majority of the medial right breast. WHY IT MATTERS:
FURTHER READING: Patterns of Nonmasslike Enhancement at Screening Breast MR Imaging of High-Risk Premenopausal Women (RadioGraphics 2013)  IMAGING FINDINGS:
Axial post-contrast subtraction image demonstrates two round enhancing masses with irregular margins in the right breast. The mass marked by an arrow shows suspicious ring enhancement. WHY IT MATTERS:
FURTHER READING: ACR BI-RADS® Atlas Fifth Edition Quick Reference  IMAGING FINDINGS:
Sagittal fat saturated T1-weighted image (A.) demonstrates poor fat saturation due to coil artifact in the superior left breast. The breast is positioned poorly with too much of the abdomen included in the coil, forcing the superior breast to touch the coil. After the patient is re-positioned with the breast centered in the coil (B.), there is no longer coil artifact. WHY IT MATTERS:
FURTHER READING: Breast MR Imaging Artifacts: How to Recognize and Fix Them (RadioGraphics 2007)  IMAGING FINDINGS:
Axial and Sagittal post-contrast images demonstrate linear non-mass enhancement in the central right breast. WHY IT MATTERS:
FURTHER READING: Nonmass Enhancement on Breast MRI: Review of Patterns With Radiologic-Pathologic Correlation and Discussion of Management (AJR 2015)  IMAGING FINDINGS:
Maximum Intensity Projection (MIP) image demonstrates moderate symmetric, diffuse background parenchymal enhancement bilaterally. WHY IT MATTERS:
FURTHER READING: Background Parenchymal Enhancement at Breast MR Imaging: Normal Patterns, Diagnostic Challenges, and Potential for False-Positive and False-Negative Interpretation (RadioGraphics 2014)  IMAGING FINDINGS:
The first post-contrast axial MRI image shows segmental nonmass enhancement involving the majority of the lateral left breast. The second post-contrast axial image, performed after 6 rounds of neo-adjuvant chemotherapy, demonstrates complete imaging response to therapy with decrease in size of the lesion and no remaining enhancement identified. WHY IT MATTERS:
Imaging Neoadjuvant Therapy Response in Breast Cancer (RSNA, 2017)  IMAGING FINDINGS:
Post-contrast breast MRI image performed to assess extent of disease demonstrate the known biopsy proven malignancy (index lesion) in the left breast. There is a rim enhancing mass containing a biopsy clip in the inferior left breast at a posterior depth. The second post-contrast image demonstrates an irregular, enhancing mass in the central right breast at a middle depth. This is highly suspicious for contralateral disease. WHY IT MATTERS:
FURTHER READING: MRI Evaluation of the Contralateral Breast in Women with Recently Diagnosed Breast Cancer (N Engl J Med, 2007) IMAGING FINDINGS:
Maximum intensity projection (MIP) image demonstrates moderate to marked symmetric background parenchymal enhancement bilaterally. WHY IT MATTERS: 1. Background parenchymal enhancement is reported on all breast MRI’s. The four categories are: a. Minimal b. Mild c. Moderate d. Marked 2. Background parenchymal enhancement is assessed as either symmetric or asymmetric. The MIP image gives a good overview of both breasts. FURTHER READING: Background Parenchymal Enhancement at Breast MR Imaging: Normal Patterns, Diagnostic Challenges, and Potential for False-Positive and False-Negative Interpretation (RadioGraphics, 2014)  IMAGING FINDINGS:
Sagittal MRI image demonstrates an irregular enhancing mass in the inferior right breast at a posterior depth. There is enhancement of the underlying pectoralis muscle consistent with pectoralis invasion. WHY IT MATTERS:
FURTHER READING: Radiologists’ Role in Breast Cancer Staging: Providing Key Information for Clinicians (RadioGraphics, 2014) |
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