Crossed Aphasia in a Patient with Anaplastic Astrocytoma of the Non-Dominant Hemisphere.
J Radiol Case Rep
; 11(9): 1-9, 2017 Sep.
Article
em En
| MEDLINE
| ID: mdl-29299104
ABSTRACT
Aphasia describes a spectrum of speech impairments due to damage in the language centers of the brain. Insult to the inferior frontal gyrus of the dominant cerebral hemisphere results in Broca's aphasia - the inability to produce fluent speech. The left cerebral hemisphere has historically been considered the dominant side, a characteristic long presumed to be related to a person's "handedness". However, recent studies utilizing fMRI have shown that right hemispheric dominance occurs more frequently than previously proposed and despite a person's handedness. Here we present a case of a right-handed patient with Broca's aphasia caused by a right-sided brain tumor. This is significant not only because the occurrence of aphasia in right-handed-individuals with right hemispheric brain damage (so-called "crossed aphasia") is unusual but also because such findings support dissociation between hemispheric linguistic dominance and handedness.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Afasia de Broca
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Astrocitoma
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Neoplasias Encefálicas
Limite:
Female
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Humans
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Middle aged
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article