CAJ | 학술논문

目的：分析乳腺叶状肿瘤（PTB）的MRI表现，提高对该病的认识和诊断水平。方法回顾性分析经手术病理证实的13例PTB的M RI表现，包括肿瘤的形态特征、平扫信号强度、动态增强表现及时间信号强度曲线，类型、DWI信号特征，并与病理结果对照。结果13例PTB均单发。病灶大小为6．2cm ×4．2cm～1．2cm ×1．1cm。4例分叶状呈多发结节融合样改变，9例边缘轻度分叶，8例在分叶间见条状分隔延伸至肿瘤内部。M RI平扫T1 WI呈等或稍低信号， T2 WI 9例呈混杂高信号，4例呈均匀高信号。DWI（b值＝800s／mm2）8例呈较高信号，5例呈稍高信号；6例同时检测了ADC图，呈高信号。动态增强扫描11例较均匀明显强化，2例不均匀明显强化，见囊变未强化区。T IC 10例呈Ⅱ型，Ⅰ型2例，Ⅲ型1例。术后病理诊断：良性9例，交界性4例，未见恶性 PTB。结论 PTB的 M RI表现具有一定特征性， M RI检查有助于该病的诊断。
목적：분석유선협상종류（PTB）적MRI표현，제고대해병적인식화진단수평。방법회고성분석경수술병리증실적13례PTB적M RI표현，포괄종류적형태특정、평소신호강도、동태증강표현급시간신호강도곡선，류형、DWI신호특정，병여병리결과대조。결과13례PTB균단발。병조대소위6．2cm ×4．2cm～1．2cm ×1．1cm。4례분협상정다발결절융합양개변，9례변연경도분협，8례재분협간견조상분격연신지종류내부。M RI평소T1 WI정등혹초저신호， T2 WI 9례정혼잡고신호，4례정균균고신호。DWI（b치＝800s／mm2）8례정교고신호，5례정초고신호；6례동시검측료ADC도，정고신호。동태증강소묘11례교균균명현강화，2례불균균명현강화，견낭변미강화구。T IC 10례정Ⅱ형，Ⅰ형2례，Ⅲ형1례。술후병리진단：량성9례，교계성4례，미견악성 PTB。결론 PTB적 M RI표현구유일정특정성， M RI검사유조우해병적진단。
Objective To study the MRI performance of phyllodes tumors and to improve the diagnostic level .Methods The MRI data of 13 patients with phyllodes tumors of the breast verified by histopathology were analyzed .The MRI fea‐tures analyzed included morphological features , signal intensity , appearance of dynamic contrast enhancement (DCE‐MRI) ,the type of time‐signal intensity curve(TIC) ,and the features on DWI ,and compared with the results of patholo‐gy .Results 13 cases of PTB were single .Tumor size is 6 .2 cm × 4 .2 cm~1 .2 cm × 1 .1 cm .4 tumors are lobular and seems like the fusion of multiple nodules ,9 tumors are mild lobular .Strip between leaf separated extends to the tumor in‐terna in 8 cases .Lesions showed middle signal or low signal on T1WI ,9 cases showed mixed high signal and 4 cases showed homogeneous high signal On T2WI .8 cases showed high signal and 5 cases showed slightly high signal on DWI(b=800 s/mm2 ) .6 cases were simultaneously detected ADC ,all tumors showed high signal .11 cases showed homogeneous enhancement and 2 cases showed heterogeneous with cystic unreinforced area on DCE‐MRI .Type Ⅱ of TIC were shown in 10 cases ,type in 2 cases and type Ⅲ in 1 case .Among the 13 cases of PTB ,9 lesions were benign and 4 were borderline tumors ,there is no malignant PTB .Conclusion The findings of PTB on MRI have some characteristics .MRI helps diag‐nosis of the PTB .