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• Clinical Article •
MR imaging analysis of phyllodes tumors of the breast
CHEN Dui-mei  WANG Qing-shan  WANG Jun  LI Jian-an  CHEN Wen-jing 

DOI:10.3969/j.issn.1674-8034.2013.01.006.


[Abstract] Objective: To analyse the MR imaging of phyllodes tumors and improve the diagnosis level.Materials and Methods: The MRI data of 8 patients with phyllodes tumors of the breast verified by histopathology were analyzed. The MRI features analyzed included morphology, signal intensity on pre-enhanced T1WI, appearance of dynamic contrast enhancement (DCE-MRI), the type of time-signal intensity curve (TIC), and the features on DWI. The ADC values for phyllodes tumor and normal breast tissue were compared using paired t test.Results: The pathologic diagnosis of the 10 phyllodes tumors inclulding 6 benign, 3 borderline and 1 malignant. Of the 10 tumors, 6 were lobular and 4 were oval in shape; the margins were well-defined in 7 cases, and ill-defined in 3 cases. All tumors were hypointensity on T1WI, and hyperintensity on T2WI or STIR; Moreover, internal septations which appeared low signal intensity on T2WI in 2 tumors and hyperintense fluid-filled slit-like spaces in 2 tumors on T2WI FS or STIR were seen. On DCE-MRI, all of the tumors showed rapid initial enhancement, type I of TIC were shown in 2 cases and typeⅡ in 8 cases. Nine patients underwent DWI were all showed high signal, the mean ADC value for phyllodes tumors[(1.32±0.18)×l0-3 mm3/s] was significantly lower than that of the normal breast tissue[(1.90±0.21)×l0-3 mm3/s, t=2.33, P<0.05].Conclusion: The imagig findings of phyllodes tumors on MR is characteristic but not specific, the final diagnosis still depends on the histopathologic examination.
[Keywords] Breast tumor；Phyllodes tumors；MR imaging

CHEN Dui-mei Department of Radiology, the Secondary Traditional Chinese Medical Hospital of Guangdong Province, Guangzhou 510095, China

WANG Qing-shan* Department of Radiology, the Secondary Traditional Chinese Medical Hospital of Guangdong Province, Guangzhou 510095, China

WANG Jun Department of Radiology, The Secondary Affiliated Hospital of Shanxi Medical University, Taiyuan 030001, China

LI Jian-an Department of Radiology, the Secondary Traditional Chinese Medical Hospital of Guangdong Province, Guangzhou 510095, China

CHEN Wen-jing Department of Radiology, the Secondary Traditional Chinese Medical Hospital of Guangdong Province, Guangzhou 510095, China

*Correspondence to: Wang QS, E-mail: mjhong313@Yahoo.com.cn

Conflicts of interest   None.

Received  2012-10-26
Accepted  2012-11-27
DOI: 10.3969/j.issn.1674-8034.2013.01.006
DOI:10.3969/j.issn.1674-8034.2013.01.006.

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