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| The value of MRI in diagnosis of phyllode tumors of the breast |
SHUANG Ping, QIAO Peng-gang, QIN Yong-chao, LI Yang,
SI Wen, LIN Lin-lin, ZUO Zhi-wei, LI Gong-jie |
| Department of Radiology, 307 Hospital of the PLA, Beijing 100071, China |
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Abstract Objective: To analyze the MRI features of phyllode tumors of the breast(PTB), and to improve the diagnosis and differential diagnosis of this disease by MRI. Materials and Methods: We retrospectively reviewed MRI features of 9 cases of PTB confirmed by pathology, including morphology, signal intensity, the type of TIC, signal on DWI and ADC value. Results: Six lesions were benign, 1 lesion was borderline, and 2 lesions were malignant. In the 6 benign lesions, 5 were lobulated and 1 was oval. All lesions were hypointensity on T1WI. Four lesions were inhomogeneous and 2 were homogeneous hyperintensity on T2WI. 4, 1, and 1 lesions showed TICs of typeⅠ, type Ⅱ and type Ⅲ, respectively. One borderline lesion was lobulated, and showed mixed signals on T1WI and T2WI, with TIC of type Ⅲ. Two malignant lesions were lobulated, and showed hypointensity on T1WI and inhomogeneous hyperintensity on T2WI, with TICs of type Ⅱ and type Ⅲ, respectively. All 9 tumors showed high signal on DWI, and ADC values of 5 cases were lower than the boundary value for differential diagnosis between benign and malignant breast lesions. Conclusion: MRI is helpful to the diagnosis of PTB. Large lesion with fissure, cystic degeneration or septation, TIC of type Ⅱ or Ⅲ and low ADC value should be considered as borderline or malignant lesion, but biopsy is still needed to confirm.
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Received: 07 July 2014
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Corresponding Authors:
LI Gong-jie
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2014, Vol. 25 
