Paradoxical lid elevation with sustained upgaze: A sign of lambert‐eaton syndrome

摘要

AbstractMyasthenia gravis and Lambert‐Eaton myasthenic syndrome are causes of acquired extraocular muscle weakness and ptosis. Exacerbation of ptosis after sustained upgaze is a clinically useful sign in the diagnosis of myasthenia gravis. A 54‐year‐old woman with established Lambert‐Eaton myasthenic syndrome exhibited transient improvement of her ptosis after sustained upgaze. We suggest that paradoxical lid elevation after sustained upgaze may be a clinically useful sign in distinguishing Lambert‐Eaton myasthenic syndrome from myasthen