Myasthenia gravis presenting during general anaesthesia for oesophagoscopy--a cautionary tale

We report myasthenia gravis presenting as dysphagia of acute onset in a 56-year-old female who had no other stigmata of the disease and who was generally well despite rheumatoid arthritis and hypothyroidism. She recovered respiratory function following a general anaesthetic for oesophagoscopy only when antimyasthenic treatment was instituted. She remains well to date. In patients who are known to have autoimmune diseases and who present with dysphagia, features of myasthenia gravis should be specifically sought.