肝脏孤立性坏死结节的MRI和CT诊断及鉴别诊断

发布时间：2018-03-02 14:34

  本文选题：肝脏　切入点：孤立性坏死结节　出处：《放射学实践》2015年08期 　论文类型：期刊论文

【摘要】：目的:探讨肝脏孤立性坏死结节(SNN)的MRI、CT表现及其鉴别诊断价值。方法:回顾性分析经手术病理证实的47例SNN的临床及影像学资料。38例行腹部MRI平扫及增强检查,7例行腹部CT平扫及增强检查,2例同时行MRI和CT检查。结果:病灶位于肝右叶39例(39/47,83.0%),肝左叶8例(8/47,17.0%);分布于肝实质边缘42例(42/47,89.4%),肝脏深部5例(5/47,10.6%);病灶最大径≤2.5cm者25例(25/47,53.2%)、2.5cm者22例(22/47,46.8%);形态不规则29例(29/47,61.7%),呈圆形或椭圆形18例(18/47,38.3%)。MRI示所有病灶于T1WI上呈低信号-等信号,32例病灶T2WI上呈等信号-稍高信号、8例呈稍低信号。CT平扫示所有病灶内部呈稍低-低密度影,1例病灶边缘可见环形钙化。三期增强扫描显示所有病灶内部无强化,周边有薄环状延迟强化,其中18例病灶内间隔有轻度强化。结论:SNN的MRI、CT表现具有一定特征性,有助于该病的诊断。
[Abstract]:Objective: to investigate the CT findings of solitary necrotic nodule of liver (SNN) and its differential diagnostic value. Methods: clinical and imaging data of 47 cases of SNN proved by operation and pathology were retrospectively analyzed. 38 cases of abdominal MRI plain scan and contrast-enhanced examination were analyzed retrospectively. MRI and CT were performed in 2 cases. Results: 39 cases were located in the right lobe of the liver and 83.0% were located in the right lobe, 8 cases had 8 / 47 717.0% of the liver, 42 cases were located on the edge of the liver parenchyma, 5 cases were in the deep part of the liver, and 25 cases had the largest lesion diameter 鈮，

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