摘要
目的探讨肝脏上皮样血管平滑肌脂肪瘤(epithelial angiomyolipomas,EAML)的MRI表现。方法回顾性分析12例经病理证实的肝EAML的MRI表现。12例患者均行MRI平扫和多时相动态增强扫描,其中5例行CT检查。结果 12例肝EAML均为单发的类圆形肿块,边界清晰;7例位于肝左叶,4例位于肝右叶,1例位于尾叶;MR平扫表现为T1WI稍低信号、T2WI稍高信号,抑脂T1WI信号减低不明显;增强模式为"快进慢出"型:动脉期8例病灶可见"早期引流静脉",3例在门脉期和延迟期"假包膜"征,9例在动脉期和2例门脉期可见"中心强化血管"征。结论肝脏上皮样血管平滑肌脂肪瘤的MR表现具有一定的特征性,有利于肝EAML的诊断及鉴别诊断。
Objective To investigate the MRI features of hepatic epithelioid angiomyolipoma （EAML）. Methods All 12 cases of the MRI features of Hepatic EAML confirmed by pathology were retrospectively analyzed. They all were performed with MRI scanning of plane and dynamic enhanced scanning. Among of them, 3 patients were examined by CT. Results All 12 cases of hepatic EAML were the single round of mass boundary clear. 7 cases were located in the left lobe of liver, 4 cases were located in the right, and 1 case was located in the caudate lobe; The MR performance were slightly low signal in T1WI, and were slightly high signal in T2WI, and signal reducing was not obvious in fat suppression T1WI, the signal of 3 lesions with bleeding were not uniform;Enhanced mode were＆quot;washing in and slowing out＆quot;type;3 cases were＆quot;capsule-like rim＆quot;in the portal period and delay period, 9 cases of arterial phase and 2 cases of portal phase were＆quot;center strengthen blood vessel＆quot;levy. Conclusion The MR performance of hepatic epithelioid angiomyolipoma had a certain characteristic, it could be helpful for its diagnosis and differential diagnosis.
出处
《中国CT和MRI杂志》
2014年第3期75-77,80,共4页
Chinese Journal of CT and MRI
