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).

MRI: magnetic resonance imaging; FLAIR: fluid-attenuated inversion recovery.

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