摘要
目的探讨肝脏上皮样血管平滑肌脂肪瘤(EAML)的CT、MRI表现。方法对15例经病理证实的肝脏EAML患者的CT(n=10)、CTA(n=2)、MRI(n=7)、MRA(n=1)资料进行回顾性分析,并与手术病理结果对照分析。结果肝内单发病灶14例,多发1例。10例CT检查平扫均呈低密度。7例MR平扫T1WI呈低信号,T2WI呈高信号;1例病灶内T1WI、T2WI呈高信号,脂肪抑制为低信号,3例反相位T1WI肿瘤内信号较同相位降低;T2WI呈环形高信号假包膜4例。CT、MRI表现为"中心明显强化血管征"的患者为7、3例,表现为"快进慢出"、"延迟强化"、"快进快出"的患者数分别为6、2、2例,1、6、0例。2例CTA、1例MRA均表现为动脉供血、肝静脉或肝静脉分支引流入下腔静脉。结论肝脏EAML影像学表现具有一定的特征性,了解其特征性的表现有助于提示诊断。
Objective To evaluate CT and MR manifestations of the hepatic epithelioid angiomyolipomas（EAML）.Methods Retrospective analysis of 15 cases with EAML,which was confirmed by surgical pathology,was performed.Patients underwent CT（n=10）,CTA（n=2）,MRI（n=7）,MRA（n=1）,and the results were compared with surgical pathology.Results All 14 cases with intrahepatic single lesions,1case with multiple lesions.Ten cases of plain CT displayed low density.Seven cases of MR showed T1 WI low signal,T2 WI high signal;1case showed high signal in T1 WI and T2 WI and low signal in fat suppression sequence;3cases were of lower signal in reverse phase T1 WI than that in phase T1WI;4cases with circular psuedocapsule showed high signal in T2 WI.CT and MRI manifested with ＂center strengthen blood vessels＂ were 7,3cases;the case showed with ＂fast in slow out＂, ＂continuing delay to strengthen＂, ＂fast into fast out＂ in CT and MRI were 6,2,2and 1,6,0,respectively.Two cases of CTA and 1case of MRA showed tumors＇ blood were supplyed by arterial,and into the inferior vena cava from hepatic vein or hepatic vein branches.Conclusion Liver EAML have certain characteristic imaging findings,which is helpful to prompt the diagnosis.
出处
《中国医学影像技术》
CSCD
北大核心
2016年第1期87-90,共4页
Chinese Journal of Medical Imaging Technology
