Multiple sclerosis (MS), neuromyelitis optica spectrum disorder (NMOSD), and myelin oligodendrocyte glycoprotein antibody (MOG-Ab)-associated disease (MOGAD) present with overlapping features, which can make a differential diagnosis difficult. Brain and spinal cord magnetic resonance imaging (MRI) is an appropriate method for determining a correct diagnosis. The overlapping clinical features of multiple sclerosis (MS), neuromyelitis optica spectrum...