Ernst T, Chang L, Walot I, Huff K
Department of Radiology, Harbor-UCLA Medical Center, Torrance, CA 90502, USA.
Neurology. 1998 Nov;51(5):1486-8. doi: 10.1212/wnl.51.5.1486.
Structural and physiologic MRI were performed after subacute onset of left hemiparesis in a patient with MS. MRI showed a large ring-enhancing lesion with surrounding edema and mass effect; differential diagnosis included a neoplasm or a large MS plaque. Physiologic MRI showed reduced blood flow and magnetization transfer, as well as increased diffusion, in the large lesion. Because these findings suggested a tumefactive MS plaque rather than a neoplasm, the patient received steroid treatment for acute MS exacerbation. Three months later the patient improved clinically and on MRI.
在一名多发性硬化症（MS）患者出现左半身轻瘫亚急性发作后，进行了结构和生理磁共振成像（MRI）检查。MRI显示一个大的环形强化病灶，伴有周围水肿和占位效应；鉴别诊断包括肿瘤或大的MS斑块。生理MRI显示该大病灶处血流减少、磁化传递降低以及扩散增加。由于这些发现提示为肿胀性MS斑块而非肿瘤，该患者接受了针对急性MS加重的类固醇治疗。三个月后，患者在临床和MRI检查方面均有改善。
