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• Clinical Article •
Diagnostic value of MRI in non-lactation mastitis lesions
GUO Ning  LI Jing  ZHANG Renzhi  XUE Mei  SONG Ying  ZHOU Chunwu 

Cite this article as: Guo N, Li J, Zhang RZ, et al. Diagnostic value of MRI in non-lactation mastitis lesions.Chin J Magn Reson Imaging, 2019, 10(1): 31-36. DOI:10.12015/issn.1674-8034.2019.01.006.


[Abstract] Objective: To investigate the value of magnetic resonance imaging (MRI) in the diagnosis of non-lactation mastitis lesions.Materials and Methods: To retrospective analysis of 83 cases of non-lactation mastitis lesions confirmed by surgery and biopsy pathology with complete MRI data, the lesion morphology, signal intensity, apparent diffusion coefficient (ADC) value, enhancement characteristics and time intensity curve (TIC) types were evaluated and measured respectively.Results: Fifty-four cases showed masses, including single focus (29/54, 53.7%) and multiple foci (25/54, 46.3%). The shape was mainly irregular (27/54, 50.0%). The margin was mainly irregular (27/54, 50.0%) or clear (21/54, 38.9%). The enhancement scan showed heterogeneous (27/54, 50.0%) or rim enhancement (27/54, 50.0%) respectively. Twenty-nine cases showed non-mass enhancement (NME). Segmental distribution was the main type (16/29, 55.2%). The internal enhancement pattern was mainly heterogeneous (20/29, 69.0%). T2 weighted image/iteration decomposition of water with echo asymmetry and least-squares estimation (T2WI/IDEAL WATER) sequence showed middle (31/83, 37.3%) or slightly high signal intensity (31/83, 37.3%). Diffusion weighted imaging (DWI) sequence was mainly slightly high (33/83, 39.8%) and high signal intensity (46/83, 55.4%). The average value of ADC was (1.15±0.30)×10-3 mm2/s. TIC was mainly plateau type (52/83, 62.7%). The lesions were complicated by cystic degeneration and necrosis (54/83, 65.1%), peripheral edema (35/83, 42.2%) and hemorrhage (9/83, 10.8%). Accompanying signs included adjacent abnormal skin changes (30/83, 36.1%), abnormal chest wall change (11/83, 13.3%) and axillary lymph node enlargement at the same side (23/83, 27.7%).Conclusions: Non-lactation mastitis lesions have some characteristics on magnetic resonance imaging, which is of great value in differential diagnosis with breast cancer.
[Keywords] mastitis；magnetic resonance imaging

GUO Ning Imaging Diagnostic Department/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital/Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

LI Jing* Imaging Diagnostic Department/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital/Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

ZHANG Renzhi Imaging Diagnostic Department/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital/Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

XUE Mei Imaging Diagnostic Department/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital/Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

SONG Ying Imaging Diagnostic Department/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital/Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

ZHOU Chunwu Imaging Diagnostic Department/National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital/Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China

*Correspondence to: Li J, E-mail: dr.lijing@163.com

Conflicts of interest   None.

Received  2018-07-05
Accepted  2018-10-25
DOI: 10.12015/issn.1674-8034.2019.01.006
Cite this article as: Guo N, Li J, Zhang RZ, et al. Diagnostic value of MRI in non-lactation mastitis lesions.Chin J Magn Reson Imaging, 2019, 10(1): 31-36. DOI:10.12015/issn.1674-8034.2019.01.006.

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