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阔韧带平滑肌瘤的MR诊断 预览 被引量:12

MRI Diagnosis of the Broad Ligament Leiomyoma
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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.
作者 刘林 管祥林 黄奕桩 曾少华 周世柱 LIU Lin, GUANG Qiang-lin, HUANG Yi-zhuang, et al( Department of Radiology, Qingyuan People' s Hospital, Guangdong 511500, P. R. China)
出处 《放射学实践》 2007年第10期 1086-1088,共3页 Radiologic Practice
关键词 磁共振成像 阔韧带 平滑肌瘤 Magnetic resonance imaging Broad ligament Leiomyoma
作者简介 刘林(1959-),男,湖南沅江人,副主任医师,主要从事CT和MR诊断。
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