膀胱平滑肌瘤的MRI诊断及鉴别诊断  

MRI diagnosis and differential diagnosis of bladder leiomyoma

作　　者：黄聪[1] 罗军德[1] 袁冬存 淦登卫[1] 耿宽[1] 

机构地区：[1]中国人民解放军第59中心医院医学影像科,云南开远661699 [2]中山大学第二附属医院放射科,广东广州510120

出　　处：《实用放射学杂志》2017年第8期1230-1232,共3页Journal of Practical Radiology

摘　　要：目的 探讨膀胱平滑肌瘤的MRI表现及鉴别诊断.方法 回顾性分析8例经手术病理证实为膀胱平滑肌瘤的临床资料、病理及MRI资料.结果 本组病例4例位于前壁,3例位于后壁,1例位于右侧壁;6例为黏膜下型（75.0%）、1例为壁间型（12.5%）、1例为浆膜下型（12.5%）;8例T1WI均呈等信号,T2WI呈等/稍高信号,其中6例T2WI信号欠均匀,内见条状、斑片状高信号,压脂呈等信号,与盆壁肌肉信号基本一致,增强以轻中度强化为主,邻近膀胱壁及周围组织结构均无受侵.结论 膀胱平滑肌瘤的MRI表现有一定的特征性.Objective To investigate the value of MRI in the diagnosis and differential diagnosis of bladder leiomyoma.Methods Clinical data,pathological files and MRI findings of 8 patients with bladder leiomyoma that verified by pathologic were analyzed retrospectively.Results 4 cases of bladder leiomyoma were located in front bladder wall, 3 cases were in post bladder wall and 1 case in right bladder wall;meanwhile, 6 cases were endovesical（75.0%）,1 case was intramural（12.5%） and another 1 case was extravesical（12.5%）.All lesions displayed equal signals on T1WI, equal or slightly high signals on T2WI with mild and moderate enhancements;bladder wall adjacent to tumors and structures around were not invaded by tumors.6 cases of all displayed inhomogeneous signals on T2WI and with some patchy or stripe high signals in it, the signals turned to equal on a fat-saturated T1WI which was similar with muscle of pelvic wall.Conclusion MRI features of bladder leiomyoma showed certain characteristics.

关 键 词：膀胱 平滑肌瘤 磁共振成像 

分 类 号：R737.14[医药卫生—肿瘤] R445.2[医药卫生—临床医学]