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• Clinical Article •
MRI diagnosis of nonspecific granulomatous lobular mastitis
ZHAO Jianxiu  ZHOU Juan  SHENG Fugeng  LI Ming 

Cite this article as: Zhao JX, Zhou J, Sheng FG, et al. MRI diagnosis of nonspecific granulomatous lobular mastitis. Chin J Magn Reson Imaging, 2019, 10(5): 348-351. DOI:10.12015/issn.1674-8034.2019.05.006.


[Abstract] Objective: To explore the imaging features of non-specific granulomatous lobular mastitis (IGM) on MRI and to improve the understanding of the disease.Materials and Methods: Twenty cases of IGM confirmed by pathology were collected. According to the breast imaging reporting and data system (BI-RADS-MRI) of 5th edtion, T2WI, diffusion weighted imaging (DWI), dynamic enhanced scan distribution and internal enhancement characteristics, time-signal curve (TIC) of IGM were observed and recorded. Then reserved the comprehensive analysis of MRI performance characteristics of IGM.Results: IGM showed mass enhancement in 1 case with circumscribed margin and rim enhancement. There were 19 cases of non mass enhancement. The apparent diffusion coefficient (ADC) value in the non-abscess forming area was (0.93±0.15)×10-3 mm2/s. They mainly appeared regional distribution (11/19, 57.9%) and segmental distribution (6/19, 31.6%). The internal enhancement characteristics was mainly inhomogeneous enhancement (14/19, 73.7%) and the aspect ratio was 1.73±0.66. There were 17 cases accompanied by micro-abscess.Conclusions: IGM has a relatively characteristic appearance on MRI. The formation of micro-abscess is more valuable to the diagnosis of this disease. The correct understanding and diagnosis of IGM can provide valuable reference for the clinical diagnosis and treatment.
[Keywords] granulomatous mastitis；magnetic resonance imaging

ZHAO Jianxiu Department of Radiology, the Fifth Medical Center of PLA General Hospital, Beijing 100071, China

ZHOU Juan Department of Radiology, the Fifth Medical Center of PLA General Hospital, Beijing 100071, China

SHENG Fugeng* Department of Radiology, the Fifth Medical Center of PLA General Hospital, Beijing 100071, China

LI Ming Department of Radiology, the Fifth Medical Center of PLA General Hospital, Beijing 100071, China

*Correspondence to: Sheng FG, E-mail: fugeng_sheng@163.com

Conflicts of interest   None.

ACKNOWLEDGMENTS  This study was supported by Grants of the Natural Natural Science Foundation of China NO. 21575161
Received  2018-11-14
Accepted  2019-01-20
DOI: 10.12015/issn.1674-8034.2019.05.006
Cite this article as: Zhao JX, Zhou J, Sheng FG, et al. MRI diagnosis of nonspecific granulomatous lobular mastitis. Chin J Magn Reson Imaging, 2019, 10(5): 348-351. DOI:10.12015/issn.1674-8034.2019.05.006.

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