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Clinical Article
MRI features of phyllodes tumor in breast with pathological correlation
LUO Ran  ZHAO Ya-e  WANG Deng-bin  WANG Li-jun 

DOI:10.3969/j.issn.1674-8034.2014.04.003.


[Abstract] Objective: To study the MRI features of breast phyllodes tumor and to correlate them to different pathological types.Materials and methods: Clinical and imaging findings of 16 patients with pathologically confirmed PT were retrospectively reviewed. All of these 16 patients had pre-operative MRI, which were interpreted by 2 experienced radiologists according to BI-RADS classification. Inter-group comparisons were performed between benign and malignant PT based on pathological findings.Results: The pathologic findings were benign, borderline, and malignant in 10, 4, and 2 cases. Both 2 malignant cases had previous breast tumor excision. PT showed isointensity on non-contrast enhanced T1WI and hyperintensity on STIR, while large lesions showed heterogenous internal signal intensity. Non-benign PT tended to be featured with larger diameter, confluent multinodular, type III TIC and lower ADC. MRI detected 100% PT lesions with a diagnostic accuracy of 62.5%. BI-RADS classification results showed low correlation with pathological results.Conclusions: MRI features of breast PT are diverse. Breast MRI has certain advantages in preoperative diagnosis of PT, while the final diagnosis should only be based upon carefully histopathological examination of the whole lesion.
[Keywords] Breast neoplasms;Phyllodes tumor;Magnetic resonance imaging;Histology comparative

LUO Ran Department of Radiology, Xinhua Hospital Shanghai Jiaotong University School of Medicine, Shanghai 200092, China

ZHAO Ya-e* Department of Medical Imaging, Shanghai Shidong Hospital of Yangpu District, Shanghai 200483, China

WANG Deng-bin Department of Radiology, Xinhua Hospital Shanghai Jiaotong University School of Medicine, Shanghai 200092, China

WANG Li-jun Department of Radiology, Xinhua Hospital Shanghai Jiaotong University School of Medicine, Shanghai 200092, China

*Correspondence to: Zhao YE, E-mail: shdyaezhao@aliyun.com

Conflicts of interest   None.

Received  2014-04-18
Accepted  2014-06-04
DOI: 10.3969/j.issn.1674-8034.2014.04.003
DOI:10.3969/j.issn.1674-8034.2014.04.003.

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