卵巢布伦纳瘤的影像和病理特点

目的 探讨布伦纳瘤的核磁和超声的相关特点.方法 选择2011年9月～2013年4月哈尔滨医科大学附属肿瘤医院经MRI、病理及手术确诊的5例布伦纳瘤为研究对象,结合患者临床资料及病理回顾性分析肿瘤的大小、形态、位置、信号特点、浸润深度、钙化等情况.结果 5例均为卵巢单侧良性及交界性布伦纳瘤,其中2例合并子宫平滑肌瘤;1例合并卵泡膜细胞瘤;1例合并黄体血肿;1例合并宫腔积液.1例未被影像学检查发现（病理微小型布伦纳瘤）,4例病变直径范围为1.7～12.0 cm,平均5.8 cm.核磁表现T2WI呈等、低及略高混杂信号,T1WI呈等或稍低信号,1例呈囊实混杂信号,1例其内有纤维分隔,分隔光整.肿块形态不规则、边界清楚.超声表现是不均质低回声肿块;边界清楚;其中1例见不规则多形性钙化影.结论 布伦纳瘤病理的特点使核磁和超声表现多样性,核磁多为混杂稍低信号,超声多为低回声,部分伴有钙化灶.

The imaging and pathological characteristic of Brenner tumor of ovary

Objective To investigate the characteristic of ovarian Brunner tumors in the MRI and ultrasound.Methods 5 patients with Brunner tumor of ovary proved by pathology （surgery） form September 2011 to April 2013 in the Department of Radiology of the Tumor Hospital of Harbin Medical University were selected as study objects.The size,shape,location,MRI signals,the depth of invasion,calcification of the lesions of Brunner tumor were retrospectively analyzed combined with the data of clinical and pathology.Results 5 patients with benign and borderline Brenner tumors,all tumors were ipsilateral,among that 2 cases combined with uterine leiomyoma,1 case combined with thecoma,1 case combined with corpus luteum hematoma and 1 case combined with uterine cavity effusion.Only 1 case was not been detected by imaging mordalities,which was microminiature Brunner tumor of ovary.The diameters of other 4 lesions were 1.7-12.0 cm,with an average value of 5.8 cm.T2WI demonstrated was low or mildly high signal intensity,T1WI showed that the MRI signals of Brunner tumor were equal,low,high and mixed.In MRI imaging,1 lesion mixed cystic and solid signal intensity,and 1 with clear septa.All lesions showed an irregular shape and clear border.Ultrasonography showed heterogeneous hypoechoic mass and clear boundary; including one case with pleomorphic calcification,some accompanied by calcification.Conclusion The pathological features make the performance of patients with ovarian Brunner tumor in MRI and ultrasound diversity.In MRI,it demonstrates mixed mildly low signal,and hypoechoic mass in ultrasound.