右侧顶枕叶非惊厥性癫痫持续状态所致的可逆性局灶性影像学改变。

Reversible focal radiological changes due to non-convulsive status epilepticus of the right parietooccipital lobe.

作者信息

Tuan Huynh Nhat Nguyen, Hiroyoshi Akutsu, Shozo Noguchi, Takashi Tsunoda, Hideo Tsurushima, Akira Matsumura

机构信息

University of Tsukuba, Graduate School of Comprehensive Human Science, Department of Neurosurgery, Tsukuba, Japan.

出版信息

Turk Neurosurg. 2013;23(2):278-81. doi: 10.5137/1019-5149.JTN.4870-11.0.

DOI:10.5137/1019-5149.JTN.4870-11.0

PMID:23546919

Abstract

We describe a 62-year-old woman suffering from visual hallucination due to focal status epilepticus investigated by means of Magnetic Resonance Imaging (MRI), Magnetic Resonance Angiography (MRA), Electroencephalography (EEG), and 99m Technetium ethylcysteinate dimer Single Photon Emission Computed Tomography (Tc-99m ECD SPECT). EEG showed spikes in the right parietooccipital area. MRI demonstrated gyral swelling and signal hyperintensity in the right parietooccipital cortex with effacement of adjacent cortical sulci on T2- weighted and Fluid Attenuation Inversion Recovery (FLAIR) images. MRA indicated localized dilation of the right posterior cerebral artery (PCA) and parietal branch of the right middle cerebral artery (MCA), corresponding to the epileptic area shown on EEG. Hyperperfusion in the right parietooccipital lobe was observed by Tc-99m ECD SPECT. All these findings completely resolved on the follow-up studies 2 months later. We present the case showing the transient radiological alterations on MRA corresponding to the epileptic area.

摘要

我们描述了一名62岁因局灶性癫痫持续状态而出现视幻觉的女性，通过磁共振成像（MRI）、磁共振血管造影（MRA）、脑电图（EEG）以及99m锝-乙半胱氨酸二聚体单光子发射计算机断层扫描（Tc-99m ECD SPECT）对其进行了检查。脑电图显示右侧顶枕区有棘波。MRI在T2加权像和液体衰减反转恢复（FLAIR）图像上显示右侧顶枕叶皮质脑回肿胀、信号高增强，相邻脑沟消失。MRA显示右侧大脑后动脉（PCA）及右侧大脑中动脉（MCA）顶叶分支局部扩张，与脑电图所示癫痫区域相对应。Tc-99m ECD SPECT观察到右侧顶枕叶灌注增加。所有这些发现在2个月后的随访研究中完全消失。我们展示了该病例，其MRA上对应癫痫区域出现了短暂的影像学改变。