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Arq. neuropsiquiatr ; 66(1): 5-7, mar. 2008. ilus, tab
Article in English | LILACS | ID: lil-479639

ABSTRACT

Myasthenia gravis (MG) is an autoimmune disease characterized by fluctuating muscle weakness, caused by impaired neuromuscular transmission. Patients with MG can present other autoimmune diseases in association, commonly hypo or hyperthyroidism. The association of MG to demyelinating disease is rare and has been described before. We report on three Brazilian patients with MG that presented distinct demyelinating diseases, two monophasic and one recurrent neuromyelitis optica, several years after the diagnosis of MG, and discuss their clinical courses.


Miastenia gravis (MG) é doença autoimune caracterizada por episódios de fraqueza muscular alternados com melhora, causada por bloqueio da junção neuromuscular. Pacientes com MG podem apresentar outras doenças autoimunes, comumente hipo ou hipertiroidismo, e a associação de MG com doenças desmielinizantes é raramente descrita. Relatamos três pacientes brasileiros com MG que desenvolveram doenças desmielinizantes, dois monofásicos e um neuromielite óptica recorrente, vários anos após o diagnóstico de MG e discutimos seus cursos clínicos.


Subject(s)
Adult , Female , Humans , Male , Demyelinating Diseases/etiology , Myasthenia Gravis/complications , Demyelinating Diseases/diagnosis , Magnetic Resonance Imaging , Neuromyelitis Optica/diagnosis , Neuromyelitis Optica/etiology , Recurrence
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