阔韧带平滑肌瘤的MR诊断  

MRI Diagnosis of the Broad Ligament Leiomyoma

作　　者：刘林[1] 管祥林[1] 黄奕桩[1] 曾少华[1] 周世柱[1] 

机构地区：[1]暨南大学医学院第五附属医院,广东省清远市人民医院影像中心,广东511500

出　　处：《放射学实践》2007年第10期1086-1088,共3页Radiologic Practice

摘　　要：目的:探讨阔韧带平滑肌瘤的MR表现及诊断价值。方法:回顾性分析13例经手术和病理证实为阔韧带平滑肌瘤的MR表现。结果:13例中肿块位于子宫右侧4例,左侧8例,两侧1例。肿块呈圆形、类圆形10例,不规则形或分叶状3例。肿块大于5cm占84.6%(11/13)。T1WI肿块均呈等或略低信号;T2WI为中等信号,其中11例肿块中见不均匀斑点状、梭条状高信号影,2例见大片状液化坏死灶。注射钆喷替酸葡甲胺(Gd-DTPA)后扫描肿块实质部分明显强化,显示包膜完整,与子宫等周围脏器分界清晰10例,包膜不清,与子宫有粘连且分界不清3例;包膜不强化且显示更清晰。结论:阔韧带平滑肌瘤的MR表现具有一定的特征性:盆腔内、子宫外大而有完整包膜的实性或实性为主的肿块,T1WI呈等或略低信号,T2WI呈中等信号,其内常可见不均匀斑点状、梭条状高信号影,增强扫描肿瘤强化明显。MR具有良好的软组织分辨率、多方位成像的特点,有利于肿瘤结构、成份与包膜显示,对明确诊断有肯定的价值。Objective：To study value and findings of Magnetic resonance imaging diagnoses of the broad ligament leiomyoma. Methods：Retrospectively analysis the findings of magnetic resonance of 13 cases the broad ligament leiomyoma. All were proved by operative and pathological confirmation. Results：Of the 13 patients, these tumors located at the right lateral of uterus （n=4,4/13） ,the left （n=8,8/13） ,bilateral （n= 1,1/13）. The tumors were similar to pellet or ellipse shape in 10 cases and irregular shape in 3 cases. The diameter of tumors be more larger 5cm were in 11 cases （11/13）. These tumors had a signal of intermediate or slightly low intensity on T1-weighted images, while on T2-weighted images a intermediate in signal intensity of the masses,with dot and shuttle-strip hyper-intense areas were in 11 cases and with larger fluidify patchy were in 2 cases, The masses had obviously contrast enhanced with patchy non-enhanced areas after intravenous Gd-DTPA injection. MR demonstrated masses with integrity capsule and clearly border in 10 cases and not in 3 cases. The capsules were more clear and non-enhanced. Conclusion： A characteristic feature of the broad ligament leiomyoma in MR were found the larger,solid or more solid masses of pevil and extrauterine with capsule, these tumors had a signal of intermediate or slightly low intensity on T1-weighted images and a intermediate in signal intensity on T2-weighted images with dot and shuttle-strip hyper-intense areas often. MR possesses good soft tissue resolution, multi-direction imaging technique, which can demonstrate the capsule,inner structure of the tumor. These help to the confirm diagnoses.

关 键 词：磁共振成像 阔韧带 平滑肌瘤 

分 类 号：R737.33[医药卫生—肿瘤]