MRI characteristics of MOG-Ab associated disease in adults: An update

•MOGAb-optic neuritis is classically extensive, bilateral with perineuritis and optic nerve head edema. It is only rarely located within chiasma or optic tract.•Spinal cord MRI lesions associated with MOGAD myelitis are frequently centrally located and longitudinally extensive.•Short and multiple spinal cord lesions and lumbar localization are not rare. Gadolinium enhancement as well as signal abnormality can be missing.•MOGAD can be associated to brain and brainstem MRI abnormalities, frequently “fluffy” (poorly demarcated) white matter ones. Rare but more specific ADEM-like lesions and cortical involvement have been described in adults with MOGAD.