肝脏上皮样血管内皮瘤的影像学特征  

Imaging findings of hepatic epithelioid hemangioendothelioma

作　　者：缪建良[1] 刘淼[2] 陈达伟[2] 

机构地区：[1]南京军区杭州疗养院放射科,杭州310013 [2]解放军第117医院医学影像科,杭州310013

出　　处：《放射学实践》2011年第7期736-738,共3页Radiologic Practice

摘　　要：目的:提高对肝脏上皮样血管内皮瘤(EHE)的认识和影像诊断水平。方法:搜集经手术病理证实的5例肝脏上皮样血管内皮瘤患者的CT、MRI和病理学资料,分析和总结其影像学征象。结果:CT平扫示肝脏多个类圆形低密度灶,2例病灶边缘可见条状钙化灶。增强后动脉期主要表现为肿瘤周边轻度强化,延迟后肿瘤实质部分无明显对比剂进入,而中央更低密度区无强化。MRI显示肝内多个类圆形病灶T1WI呈低信号,T2WI呈高信号,病灶边缘有低信号晕环。结论:EHE具有一些特征性的影像学特点,CT和MRI检查能为临床诊断及鉴别诊断提供有价值的信息。Objective：To improve the understanding of imaging findings and diagnostic level of hepatic epithelioid hemangioendothelioma（EHE）.Methods：The CT,MRI and pathology materials of five patients with surgery and pathology proved hepatic EHE were collected,the imaging manifestations were retrospectively analyzed.Results：On plain CT scanning,multiple hypodense,round shaped lesions were showed,2 cases had peripheral striped calcifications.After contrast administration,mild peripheral enhancement was assessed in arterial phase,no marked enhancement in the solid part of mass in delayed phase was showed,the central area had no enhancement.On MRI,multiple round shaped nodules were assessed in liver showing hypointensity on T1WI and hyperintensity on T2WI with peripheral hypo-intense haloes.Conclusion：Certain characteristic imaging features of hepatic EHE could be revealed,significant information for the clinical diagnosis and differential could be provided by CT and MRI.

关 键 词：肝肿瘤 上皮样血管内皮瘤 体层摄影术 X线计算机 磁共振成像 

分 类 号：R735.7[医药卫生—肿瘤]