MRI changes accompanying the unilateral cortical encephalitis phenotype of myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD)

Axial FLAIR MRI reveals cortical swelling and T2 hyperintensity involving the right hemisphere (A1, arrows). Axial T1-weighted postcontrast MRI reveals accompanying cortical and leptomeningeal enhancement (A2, arrows).