Spincemaille G H, Slooff J L, Hogenhuis L A, Lodder J
Neurosurgery. 1985 Dec;17(6):968-70. doi: 10.1227/00006123-198512000-00019.
A patient with a completely thrombosed giant aneurysm arising from the trunk of the basilar artery is described. Although it is difficult to differentiate this anomaly from a posterior fossa tumor, negative angiographic findings combined with certain computed tomographic (CT) signs may point to the correct diagnosis. Our case demonstrates that one of these CT signs (viz. ringlike contrast enhancement) can be explained by the presence of vasa vasorum in the aneurysm wall.
本文描述了一位患有源自基底动脉主干的完全血栓形成的巨大动脉瘤患者。尽管很难将这种异常与后颅窝肿瘤区分开来，但血管造影阴性结果结合某些计算机断层扫描（CT）征象可能指向正确诊断。我们的病例表明，这些CT征象之一（即环状对比增强）可由动脉瘤壁中存在血管滋养管来解释。
