1990
DOI: 10.1590/s0004-282x1990000400018
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Associação rara: polimiosite, miastenia grave e timoma

Abstract: RESUMO -Fundamentados no fato de que, tanto na literatura nacional quanto na estrangeira, inexiste referência da associação de polimiosite, miastenia grave e timoma em adulto jovem do sexo masculino, os autores se propõem a descrever um caso da citada síndrome. O paciente aqui apresentado teve sua doença iniciada aos 22 anos de idade, atingindo sua expressão clínica máxima 4 anos miais tarde.No estudo em apreço, são enfatizadas as dificuldades no diagnóstico diferencial entre polimiosite e miastenia grave, doe… Show more

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Cited by 2 publications
(2 citation statements)
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References 22 publications
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“…Overall, it seems that severe acute neuromuscular junction transmission deficit may present with spontaneous EMG activity, mimicking acute neurogenic or myopathic processes. Given the extreme rarity of this presentation, but also the possible coexistence of MG with an inflammatory myopathy [ [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] ], eventually precise diagnosis can be probably only established on histological grounds. However, appreciation and increased suspicion of these findings is mandatory, in order to avoid dramatic delays in the management of a myasthenic crisis.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Overall, it seems that severe acute neuromuscular junction transmission deficit may present with spontaneous EMG activity, mimicking acute neurogenic or myopathic processes. Given the extreme rarity of this presentation, but also the possible coexistence of MG with an inflammatory myopathy [ [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] ], eventually precise diagnosis can be probably only established on histological grounds. However, appreciation and increased suspicion of these findings is mandatory, in order to avoid dramatic delays in the management of a myasthenic crisis.…”
Section: Discussionmentioning
confidence: 99%
“…Actual secondary myopathy remains a possibility though, as it has been histologically [ 8 ] and electromyographically [ 9 ] described in longstanding cases of myasthenia gravis. Finally, coexistence of MG with inflammatory myopathy in the context of a thymoma, has frequently been reported [ [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] ]. A single case-report has also presented coexisting MG with adult-onset nemaline myopathy [ 21 ].…”
Section: Introductionmentioning
confidence: 99%