Mondo Description Myasthenia gravis (MG) is a rare, clinically heterogeneous, autoimmune disorder of the neuromuscular junction characterized by fatigable weakness of voluntary muscles.

Disease Ontology Description An autoimmune neuromuscular disease, has_material_basis_in antibodies to acetylcholine receptors at the neuromuscular junction, has_symptom ptosis, has_symptom diplopia, has_symptom dysphagia, has_symptom dysarthria, has_symptom muscle weakness and has_symptom dyspnea.