Myasthenic crisis as an initial presentation of myasthenia gravis in an 81-year-old following endoscopic myotomy for Zenker's diverticulum.

In this article, we present the case of a patient with previously undiagnosed myasthenia gravis who underwent an endoscopic procedure for Zenker's diverticulum. The patient was readmitted due to ongoing dysphagia and severe respiratory distress caused by myasthenic crisis. This case demonstrates that myasthenia gravis, although rare, can occur in elderly patients and present with other sequelae that may mask the underlying diagnosis.