Characteristics and outcome of enhancing foci followed on breast MRI with management implications Journal Article


Authors: Ha, R.; Sung, J.; Lee, C.; Comstock, C.; Wynn, R.; Morris, E.
Article Title: Characteristics and outcome of enhancing foci followed on breast MRI with management implications
Abstract: Aim To evaluate the risk of cancer of an enhancing focus identified at breast magnetic resonance imaging (MRI) by determining the positive predictive value (PPV) associated with specific characteristics of an enhancing focus. Materials and methods Retrospective, institutional review board-approved review of the database identified 111 consecutive patients who underwent short-term follow-up of 136 enhancing foci in 2008. Kinetic analysis (delayed enhancement pattern) and other characteristics, such as interval change and T2 signal intensity, were evaluated to calculate the PPV for malignancy. Results The overall malignancy rate of an enhancing focus was 2.9% [4/136, 95% confidence interval (CI): 0.9-7.6%]. Kinetic analysis showed no statistical difference in PPV between foci with washout enhancement [5.1% (2/39)] versus persistent enhancement [3.2% (2/62); Fisher's exact test, p = 0.6180]. PPV of a T2 hypointense focus was 8.7% (4/46); PPV of a new focus was 13.6% (3/22); PPV of an enlarging focus was 6.7%, (1/15). The combination of a focus being new and T2 hypointense had the highest PPV for malignancy (27.2%, 3/11, 95% CI: 9.2-57.1%). Conclusion Kinetic analysis was not specific for malignancy and should not be used solely to guide management. A new enhancing focus with T2 hypointensity had a high PPV for malignancy and may warrant immediate biopsy. © 2014 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.
Keywords: adult; aged; major clinical study; histopathology; cancer risk; nuclear magnetic resonance imaging; follow up; breast cancer; tumor biopsy; retrospective study; kinetics; contrast enhancement; family history; breast carcinoma; breast examination; fibroadenoma; image display; predictive value; nuclear magnetic resonance scanner; gadolinium pentetate meglumine; human; female; priority journal; article; enhancing focus
Journal Title: Clinical Radiology
Volume: 69
Issue: 7
ISSN: 0009-9260
Publisher: W B Saunders Co Ltd  
Date Published: 2014-07-01
Start Page: 715
End Page: 720
Language: English
DOI: 10.1016/j.crad.2014.02.007
PROVIDER: scopus
PUBMED: 24680120
DOI/URL:
Notes: Clin. Radiol. -- Export Date: 8 July 2014 -- CODEN: CLRAA -- Source: Scopus
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  1. Janice Sinae Sung
    67 Sung
  2. Carol Lee
    25 Lee
  3. Elizabeth A Morris
    336 Morris
  4. Ralph Thomas Wynn
    2 Wynn