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Congress: ECR25
Poster Number: C-22521
Type: Poster: EPOS Radiologist (educational)
Authorblock: R. Bouanane, I. Mohammedine, H. Retal, Y. Omor, R. Latib, S. Amalik; Rabat/MA
Disclosures:
Rania Bouanane: Nothing to disclose
Imane Mohammedine: Nothing to disclose
Hamza Retal: Nothing to disclose
Youssef Omor: Nothing to disclose
Rachida Latib: Nothing to disclose
Sanae Amalik: Nothing to disclose
Keywords: Breast, Mammography, MR, Ultrasound, Image compression, Calcifications / Calculi, Education and training, Neoplasia
Learning objectives To propose a structured and standardized management strategy for non-mass enhancement (NME) detected on breast MRI by systematically evaluating its imaging characteristics, diagnostic relevance, and correlation with mammography, digital breast tomosynthesis (DBT), and histopathological findings from macro-biopsy. This study aims to analyze a cohort of patients with NME, assessing lesion morphology, internal enhancement patterns, and distribution to determine predictive factors for malignancy. By integrating multimodal imaging and histopathological results, we seek to refine the clinical approach to NME, improve diagnostic...
Read more Background A retrospective study was conducted on a cohort of 20 female patients, aged between 40 and 60 years, who presented with non-mass enhancement (NME) on breast MRI between January 2020 and December 2023. Patients were selected from the radiology records of a specialized breast imaging center. All MRIs were performed using a 1.5T. MRI with gadolinium-based contrast administration. The imaging protocol included T1-weighted fat-suppressed sequences, T2-weighted sequences, diffusion-weighted imaging (DWI), and dynamic contrast-enhanced imaging with subtraction techniques. NME findings were...
Read more Findings and procedure details A total of 20 patients aged between 40 and 60 years were included in this study. Among the 20 non-mass enhancement (NME) breast lesions analyzed, 10 were malignant (7 cases of ductal carcinoma in situ [DCIS] and 3 cases of invasive lobular carcinoma), while 10 were benign, including fibrocystic changes and papillomas [1][4].MRI assessment revealed that segmental enhancement patterns were observed in 30% of cases, with a malignancy rate of 42%, whereas regional enhancement was present in 50% of cases,...
Read more Conclusion The variability in non-mass enhancement (NME) presentation underscores the necessity of a multimodal diagnostic approach, integrating advanced imaging techniques and histopathological evaluation to improve diagnostic accuracy. Our findings confirm the high sensitivity of MRI in detecting malignancies, particularly in cases where mammography or ultrasound fail to reveal suspicious findings.Segmental enhancement patterns, clustered-ring internal enhancement, and wash-out kinetic curves were strongly associated with malignancy, reinforcing the critical role of MRI in risk stratification. Additionally, diffusion-weighted imaging (DWI) and apparent diffusion coefficient...
Read more References Monticciolo D, Newell M, Moy L, Niell B, Monsees B, Sickles E. Breast Cancer Screening in Women at Higher-Than-Average Risk: Recommendations from the ACR. ACR 2018; 15:408-414. DOI: 10.1016/j.jacr.2017.11.034 ACR Practice Parameter for the Performance of Contrast-Enhanced Magnetic Resonance Imaging (MRI) of the Breast. l In: ACR Practice Parameters and Technical Standards. American College of Radiology.2018. D'Orsi CJ, Sickles EA, Mendelson EB, Morris EA, et al. ACR BI-RADS® Atlas, Breast Imaging Reporting and Data System. Reston [2, VA, American College of Radiology;...
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