Assuntos
Miastenia Gravis/complicações , Doenças do Nervo Troclear/etiologia , Diagnóstico Diferencial , Feminino , Humanos , Pessoa de Meia-Idade , Miastenia Gravis/diagnóstico , Miastenia Gravis/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Doenças do Nervo Troclear/diagnóstico , Doenças do Nervo Troclear/diagnóstico por imagemRESUMO
A 66-year-old right-handed woman with type 2 diabetes mellitus was admitted to our hospital with progressive dysarthria and gait disturbance preceded by difficulty in knitting. Brain magnetic resonance imaging (MRI) showed a lesion involving the entire corpus callosum. Although tumor was considered in the differential diagnosis because of the atypical imaging findings, she was diagnosed with infarction based on clinical improvement after admission and sequential changes in MRI. We suggest that difficulty in knitting may be an important early manifestation of a callosal disconnection syndrome and that follow-up clinical and imaging examinations would contribute to confirmation of the diagnosis.
Assuntos
Infarto Encefálico/diagnóstico , Infarto Encefálico/patologia , Corpo Caloso/patologia , Transtornos das Habilidades Motoras/etiologia , Idoso , Infarto Encefálico/fisiopatologia , Corpo Caloso/fisiopatologia , Diagnóstico Diferencial , Disartria/fisiopatologia , Feminino , Transtornos Neurológicos da Marcha/fisiopatologia , Humanos , Imageamento por Ressonância Magnética , Síndrome , Trombose/fisiopatologiaAssuntos
Encefalite/etiologia , Encefalite/patologia , Listeria monocytogenes/patogenicidade , Listeriose/complicações , Listeriose/patologia , Rombencéfalo/microbiologia , Encefalopatia de Wernicke/patologia , Diagnóstico Diferencial , Feminino , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-IdadeRESUMO
We describe a case of myotonic dystrophy presenting with a disturbed circadian rhythm of the serum cortisol and an isolated thyrotropin deficiency. The diagnosis of myotonic dystrophy was based on clinical characteristics, positive electromyographic findings, and increased number of CTG repeats in the dystrophia myotonica protein kinase (DMPK) gene. The patient presented with a variable circadian rhythm of the serum cortisol, increased excretion of urinary free cortisol, and a high adrenocorticotropin hormone responses to corticotropin-releasing hormone. The basal serum thyrotropin concentration was low and did not increase after thyrotropin-releasing hormone stimulation. The protein encoded by the DMPK gene may act as a second messenger in signal transduction, like a protein kinase. The present patient had a diverse pattern of disturbances in the hypothalamus-pituitary-endocrine organ axis, probably mediated by differences in the action or expression of the gene products in each endocrine cell.