Kehagias D T, Moulopoulos L A, Antoniou A, Psychogios V, Vourtsi A, Vlahos L J
Department of Radiology, University of Athens, Areteion Hospital, Athens, Greece.
Hepatogastroenterology. 2000 Nov-Dec;47(36):1711-3.
We describe the sonographic, computed tomography and magnetic resonance imaging findings of two patients with histologically proven hepatic hemangioendothelioma. Both patients presented with multiple liver nodules. Color Doppler ultrasound demonstrated moderate vascularity at the periphery of the nodules, as well as central neovascularity. On enchanced computed tomography images, the lesions showed peripheral enhancement only. On magnetic resonance images, tumor signal was low on T1-weighted and moderately high on T2-weighted images. The distinction between normal liver and tumor was difficult on all sequences. Administration of superparamagnetic iron oxide particles delineated well the tumor by suppressing the signal of the normal liver and better depicted areas of remaining healthy parenchyma.
我们描述了两名经组织学证实为肝血管内皮瘤患者的超声、计算机断层扫描和磁共振成像结果。两名患者均表现为肝脏多发结节。彩色多普勒超声显示结节周边有中等程度的血管分布，以及中央新生血管。在增强计算机断层扫描图像上，病变仅表现为周边强化。在磁共振图像上，肿瘤信号在T1加权像上呈低信号，在T2加权像上呈中等高信号。在所有序列上，正常肝脏与肿瘤之间的区分都很困难。超顺磁性氧化铁颗粒的应用通过抑制正常肝脏的信号很好地勾勒出肿瘤，并更好地描绘出剩余健康实质区域。
