INTRODUCTION
Myasthenia gravis (MG) is a chronic autoimmune
neuromuscular disease. MG is characterized by autoantibody
attack of acetylcholine receptors at the motor end
plate of striated muscles, which results in variable muscle
weakness made worse by exercise [1]. Patients with MG
commonly experience respiratory failure. However, most
patients have respiratory failure during the late course of
MG and usually have additional neurological symptoms.
We treated a woman with MG who presented with isolated
respiratory failure as the first symptom of MG. Here we
report this case.