RESUMO
Myasthenia gravis [MG] is prototypical neurological autoimmune disorder, characterized by limb and occulo-bulbular fragility. Our case study will facilitate the practitioners as well as the scientific community to consider other therapy plans with patients presented with acute respiratory failure due to the use of rituximab.A 25-year-old man presented with acute respiratory failure This case reporte sheds light on the importance of differential diagnoses of refractory myasthenia gravis for inexplicable acute respiratory failure upon rituximab treatment. The case study demonstrates the problems associated with use of rituximab in refractory myasthenia gravis. It can cause acute respiratory failure among the patients with relapse specially. Our case study will facilitate the practitioners as well as the scientific community to consider other therapy plans with patients presented with acute respiratory failure due to the use of rituximab.