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  • Title: Cogan's sign in a patient with suspected post-COVID-19 vaccine-associated myasthenia gravis.
    Author: Tavares-Júnior JWL, Sobreira-Neto MA, Braga-Neto P.
    Journal: Rev Soc Bras Med Trop; 2023; 56():e0007. PubMed ID: 37283341.
    Abstract:
    The Cogan's sign is indicative of myasthenia gravis. This is the first report of neurological signs in a patient with post-COVID-19 vaccine-associated myasthenia gravis in Brazil. In this case, a previously healthy 68-year-old woman presented with proximal limb weakness, left ptosis, and diplopia 1 month after receiving her fourth dose of the COVID-19 vaccine. Neurological examination revealed the presence of Cogan's sign, and she recovered rapidly after treatment. To our knowledge, this is the first reported case of myasthenia gravis associated with the COVID-19 vaccine in Brazil.
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