原发性肝血管肉瘤临床及影像特征分析  

Clinical and imaging features of primary hepatic angiosarcoma

作　　者：刘斌 宋文艳 李宏军 LIU Bin;SONG Wenyan;LI Hongjun(Department of Radiology,Civil Aviation General Hospital,Beijing 100123,China;Department of Radiology,Beijing Youan Hospital,Capital Medical University,Beijing 100069,China)

机构地区：[1]民航总医院放射科,北京100123 [2]首都医科大学附属佑安医院放射科,北京100069

出　　处：《实用放射学杂志》2021年第12期1994-1997,共4页Journal of Practical Radiology

摘　　要：目的探讨原发性肝血管肉瘤(PHA)临床及影像特征,提高诊断准确率。方法回顾性分析经病理证实的7例PHA临床及影像特征,其中包括肿块型2例,弥漫型3例,多结节型2例。结果7例肿瘤中6例可见瘤内出血,5例血小板减少,6例血红蛋白和红细胞减少;1例肿块型可见瘤内出血,MR增强扫描可见少许延迟强化,另1例肿块型CT强化特征与肝血管瘤类似;2例多结节型T2WI表现为明显高信号或稍高信号,增强扫描均可见向心性强化和离心性强化;3例弥漫型表现为肝脏弥漫分布斑片状或微结节样改变,边界不清,增强扫描均可见延迟强化。结论PHA出现瘤内出血,CT平扫表现为高密度,MR平扫T1WI表现为高信号、T2WI表现为低信号,结节型肝血管肉瘤T2WI表现为稍高信号,3种类型肝血管肉瘤均出现渐进性强化。Objective To investigate the clinical and imaging features of primary hepatic angiosarcoma(PHA)and to improve the diagnostic accuracy.Methods The clinical and imaging features of 7 PHA cases confirmed by pathology were analyzed retrospectively.There were massive type in 2 cases,diffuse micro-nodular type in 3 cases,and multinodular type in 2 cases.Results Intratumoral hemorrhage were found in 6 cases.Thrombocytopenia were found in 5 cases.Hemoglobin and erythrocytopenia were found in 6 cases.Intratumoral hemorrhage and mild delayed enhancement in the enhanced MR were found in the 1 massive type case.CT enhanced features of the other massive type case was similar with hepatic hemangioma.High or slightly high signal on T2WI with concentric and eccentric enhancement were found in the 2 multinodular type cases.The 3 cases with diffuse micro-nodular type showed diffuse patchy or micro nodular changes in the whole liver with unclear margin and delayed enhancement.Conclusion The PHA have intratumoral hemorrhage,which presents high density on CT scan,high signal on T1 WI and low signal on T2WI.Multinodular type of PHA is usually slight high signal on T2 WI.Progressive enhancement can be found in all the three types of PHA.

关 键 词：原发性肝血管肉瘤 计算机体层成像 磁共振成像 

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