肝脏上皮样血管平滑肌脂肪瘤的CT表现  

CT characteristics of hepatic epithelial angiomyolipoma

作　　者：吴增杰[1] 华辉[2] 陈静静[1] 蒋钢[1] 李晓飞[1] 李绍科[1] 徐文坚[1] 

机构地区：[1]青岛大学医学院附属医院放射科,山东青岛266003 [2]青岛大学医学院附属医院耳鼻喉科,山东青岛266003

出　　处：《中国医学影像技术》2013年第1期84-87,共4页Chinese Journal of Medical Imaging Technology

摘　　要：目的探讨肝脏上皮样血管平滑肌脂肪瘤(HEA)的CT影像特点。方法对照术后病理所见,回顾性分析7例HEA的CT平扫及增强表现。结果 7例HEA均为单发,未见明显包膜;CT平扫均呈不均匀略低密度影,4例肿瘤内部可见脂肪密度影(CT值<—20HU),2例见多发囊变;增强后均呈明显不均匀强化,5例强化模式呈"快进慢出",1例呈"慢进慢出",1例为延迟强化;5例动脉期可见供血动脉。结论肿瘤内脂肪密度影、动脉期明显不均匀强化、静脉期持续强化或延迟强化以及可见脂肪内血管影为HEA的特征性CT表现。Objective To observe CT characteristics of hepatic epithelial angiomyolipoma （HEA）. Methods The plain and enhanced CT manifestations of HEA in 7 patients were retrospectively analyzed comparing with pathologic findings of surgical resection. Results Single tumor without capsule was found in all 7 patients. Plain CT showed the tumors were inhomogenous low density, and fat density area （CT value 〈—20 HU） of the tumor was found in 4 cases, while multiple cystic areas were found in 2 cases. After injection of contrast agent, the tumors enhanced unevenly. Enhancemeit patterns was fast in and slow out in 5 cases and delayed enhancement was found in 1 case. The feeding artery of HEA was found in 5 cases in arterial phase. Conclusion Fat density areas, inhomogeneous enhancement in arterial phase, continued or delayed enhancement in venous phase and visible vessels within the fat density areas are characteristic CT findings of HEA.

关 键 词：肝肿瘤 血管肌脂瘤 体层摄影术 X线计算机 

分 类 号：R735.7[医药卫生—肿瘤] R814.42[医药卫生—临床医学]