Clinical and MRI features of Japanese MS patients with NMO-IgG

ABSTRACT Background: NMO-IgG is a disease-specific serum marker autoantibody of neuromyelitis optica (NMO) and may distinguish NMO from multiple sclerosis (MS). NMO-IgG has also been frequently detected in Japanese patients with the optic-spinal form of MS (OSMS) suggesting that NMO and OSMS may be the same entity