We report the case of a 92-year-old quadriparetic patient who suddenly presented a major swallowing disorder following trauma
to the neck. A diagnosis of myasthenia gravis was suggested by single-fibre EMG of the extensor digitorum communis muscle. In view of the
continued absence of dysphagia after 6 months of pyridostigmine treatment, this diagnosis was considered as definitive.
Discussion. – We review the various characteristics of myasthenia gravis and ways of investigating dysphagia.
Conclusion. – It is important to be aware of and investigate all the direct and indirect signs of dysphagia and establish the exact aetiology in order
to provide the best possible treatment.