Vols. Videos

Acute Disseminated Encephalomyelitis (ADEM)

Last Updated: October 1, 2018


Figure 1: In this patient, with a recent history of upper respiratory tract infection, there is clear asymmetric subcortical FLAIR hyperintense signal (top row left) within the bilateral temporal and parietal lobes with subtle corresponding hypointense signal on T1 (top row right). The postcontrast image (bottom row) demonstrates faint peripheral enhancement.

 

Figure 2: Axial T2-FS (left) and sagittal T1 post-contrast (right) images of the head demonstrate expansile FLAIR hyperintensity in the bilateral cerebellar hemispheres. There is a flocculent appearance of the signal abnormality with heterogeneous internal contrast enhancement. The patient presented with history of viral illness, nausea, vomiting, and multiple neurologic deficits on exam. The lesions subsequently resolved fol...