Neuromyelitis Optica associated with Myastenia Gravis: A Case Report

Abstract

Neuromyelitis optica (NMO, Devic syndrome) is an inflammatory, demyelinating central nervous system disorder typically associated with optic neuritis and transverse myelitis involving three or more segments in the spinal cord. Myasthenia Gravis (MG) is an autoimmune disease characterized by weakness in fatiguing muscles due to impaired neuromuscular transmission. NMO can coexist with autoimmune diseases, and its association with myasthenia gravis is common. Studies in existing patients with both NMO and MG support that MG symptoms often appear earlier and tend to be milder. Here, we present a case of a 45-year-old woman with concurrent NMO and MG, aligning with findings from previous studies.