Acute-onset dysphagia: an uncommon presentation of myasthenia crisis.

Myasthenia crisis is a lethal complication of myasthenia gravis, and about 20% of patients with myasthenia gravis may present for the first time in crisis. We present a case in which underlying, undiagnosed myasthenia gravis presented in crisis as acute-onset dysphagia. We would like to discuss the role of acute exacerbation of chronic rhinosinusitis and the administration of high-dose oral corticosteroids in the precipitation of the myasthenia crisis in this patient.