MOG and aseptic meningitis: <h4>Background</h4>In recent years, MOG antibody-associated aseptic meningitis has gradually been reported, but its clinical features are not yet well defined.<h4>Methods</h4>A retrospective analysis was conducted on 67 children diagnosed with MOG antibody-associated diseases and treated at the Affiliated Children's Hospital of Shandong University from January 2021 to June 2024.