Giant arachnoid granulation: Differential diagnosis of acute headache
Giant arachnoid granulation: Differential diagnosis of acute headache
复制标题
DOI：
10.1111/j.1440-1673.2007.01823.x
复制
发表时间：
2007-10-01
期刊：
影响因子：
--
通讯作者：
Heyer, C. M.
中科院分区：
文献类型：
--
作者：
Peters, S. A.;Frombach, E.;Heyer, C. M.
我们提出一个强烈的情况下，迅速演变的头痛临床模仿脑膜炎，蛛网膜下腔出血或静脉窦血栓形成。临床检查，标准血液工作和中枢神经系统研究是无贡献的，并有效地排除了这些诊断。在腰椎穿刺前进行的静脉注射造影剂前后的头颅多探测器CT研究显示了一个填充上级矢状窦的非增强卵形肿块。该病变与静脉窦血栓形成不同，但最终符合巨大蛛网膜肉芽肿的标准。本文讨论了巨蛛网膜颗粒的影像学特征及鉴别诊断。
We present a case of intense, rapidly evolving headache clinically mimicking meningitis, subarachnoid haemorrhage or venous sinus thrombosis. Clinical examination, standard blood work and central nervous system studies were non-contributory and effectively ruled out these diagnoses. Cranial multidetector CT studies before and after application of intravenous contrast medium performed prior to lumbar tap disclosed a non-enhancing ovoid mass filling the superior sagittal sinus. This lesion posed a differential to venous sinus thrombosis, but ultimately fulfilled the criteria of a giant arachnoid granulation. The imaging characteristics and differential diagnosis of giant arachnoid granulations are discussed.