Serviço de Neurorradiologia, Hospital Beatriz Ângelo - Loures, Avenida Carlos Teixeira, 3, 2674-514 Loures, Lisbon, Portugal.
Eur J Radiol. 2017 Nov;96:133-144. doi: 10.1016/j.ejrad.2017.05.008. Epub 2017 May 5.
Stroke mimics (SM) are non-vascular conditions that present with an acute neurological deficit simulating acute ischemic stroke and represent a significant percentage of all acute stroke hospital admissions. The most common clinical SM includes conversion/functional (psychiatric disorder); seizures and postictal paralysis; toxic-metabolic disturbances; brain tumours; infections, and migraine. Imaging is essential for SM recognition, being Diffusion weighted imaging (DWI), perfusion imaging and angiographic studies very useful. There are several disorders that may have imaging features that simulate acute ischemic stroke, mainly presenting with cytotoxic oedema and/or perfusion deficits. The imaging features of the most frequent clinical and imaging stroke mimics are reviewed.
中风模拟症（SM）是一种非血管性疾病，表现为急性神经功能缺损，模拟急性缺血性中风，占所有急性中风住院患者的很大比例。最常见的临床 SM 包括转换/功能性（精神障碍）；癫痫发作和癫痫后瘫痪；中毒代谢紊乱；脑肿瘤；感染和偏头痛。影像学对于 SM 的识别至关重要，弥散加权成像（DWI）、灌注成像和血管造影研究非常有用。有几种疾病可能具有模拟急性缺血性中风的影像学特征，主要表现为细胞毒性水肿和/或灌注不足。回顾了最常见的临床和影像学中风模拟症的影像学特征。
