Magnetic Resonance Imaging Features of Adenosis in the Breast

Masoumeh Gity; Ali Arabkheradmand; Elham Taheri; Madjid Shakiba; Yassaman Khademi; Bijan Bijan; Mohammad Salehi Sadaghiani; Amir Hossein Jalali

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저자정보: Masoumeh Gity (Tehran University of Medical Sciences) Ali Arabkheradmand (Tehran University of Medical Sciences) Elham Taheri (Tehran University of Medical Sciences) Madjid Shakiba (Tehran University of Medical Sciences) Yassaman Khademi (Pathobiology Laboratory Center) Bijan Bijan (University of California Davis Medical Center) Mohammad Salehi Sadaghiani (Tehran University of Medical Sciences) Amir Hossein Jalali (Tehran University of Medical Sciences)

저널정보: 한국유방암학회 Journal of Breast Cancer Journal of Breast Cancer Vol.18 No.2

발행연도: 2015.1

수록면: 187 - 194 (8page)

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Purpose: Adenosis lesions of the breast, including sclerosing adenosis and adenosis tumors, are a group of benign proliferative disorders that may mimic the features of malignancy on imaging. In this study, we aim to describe the features of breast adenosis lesions with suspicious or borderline findings on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). Methods: In our database, we identified 49 pathologically proven breast adenosis lesions for which the final assessment of the breast MRI report was classified as either category 4 (n=45) or category 5 (n=4), according to the Breast Imaging Reporting and Data System (BI-RADS) published by the American College of Radiology (ACR). The lesions had a final diagnosis of either pure adenosis (n=33, 67.3%) or mixed adenosis associated with other benign pathologies (n=16, 32.7%). Results: Of the 49 adenosis lesions detected on DCE-MRI, 32 (65.3%) appeared as enhancing masses, 16 (32.7%) as nonmass enhancements, and one (2.1%) as a tiny enhancing focus. Analysis of the enhancing masses based on the ACR BI-RADS lexicon revealed that among the mass descriptors, the most common features were irregular shape in 12 (37.5%), noncircumscribed margin in 20 (62.5%), heterogeneous internal pattern in 16 (50.0%), rapid initial enhancement in 32 (100.0%), and wash-out delayed enhancement pattern in 21 (65.6%). Of the 16 nonmass enhancing lesions, the most common descriptors included focal distribution in seven (43.8%), segmental distribution in six (37.5%), clumped internal pattern in nine (56.3%), rapid initial enhancement in 16 (100.0%), and wash-out delayed enhancement pattern in eight (50%). Conclusion: Adenosis lesions of the breast may appear suspicious on breast MRI. Awareness of these suspicious- appearing features would be helpful in obviating unnecessary breast biopsies.

참고문헌 (22)

참고문헌 신청

Rosen PP / 2008 / Rosen’s Breast Pathology / Lippincott Williams & Wilkins

Taşkin F / 2011 / Sclerosing adenosis of the breast : radiologic appearance and efficiency of core needle biopsy / Diagn Interv Radiol 17:311~316

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Sardanelli F / 2010 / Magnetic resonance imaging of the breast : recommendations from the EUSOMA working group / Eur J Cancer 46:1296~1316

Van Goethem M / 2004 / MR mammography in the pre-operative staging of breast cancer in patients with dense breast tissue : comparison with mammography and ultrasound / Eur Radiol 14:809~816

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