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Rev. Soc. Bras. Fonoaudiol ; 12(2): 146-150, 2007. tab
Article in Portuguese | LILACS | ID: lil-457759

ABSTRACT

A holoprosencefalia (HPE) é a mais freqüente das malformações craniofaciais descritas na literatura. Diversos genes já foram identificados como causadores desse tipo de anomalia, entre eles, o Sonic Hedgehog (SHH), ZIC2, SIX3 e TGIF. O objetivo deste estudo foi avaliar as habilidades neuropsicolingüísticas de um indivíduo com HPE e mutação no gene SHH, apresentando características fenotípicas do tipo Like. Os resultados evidenciaram que, apesar de se tratar de um grau leve de HPE (fenótipo Like), o paciente apresentou perdas significativas nas habilidades lingüísticas, com aspecto cognitivo dentro da normalidade. O exame de ressonância magnética do encéfalo revelou hipoplasia da comissura anterior e presença de cisto temporal à esquerda, achados aparentemente não relacionados à sintomatologia clínica.


The holoprosencephaly (HPE) is the most frequent of the craniofacial malformations described in literature. Several genes have already been identified as responsible for this kind of anomaly, among them, the Sonic Hedgehog (SHH), ZIC2, SIX3 and TGIF. The aim of this study was to evaluate the neuropsycholinguistic abilities of an individual with the HPE and mutation of the SHH gene, presenting phenotypic characteristics of the Like type. The results evidenced that, in spite of the lightness of the degree of HPE (Like phenopype), the patient showed significant loss of the linguistic abilities, although the cognitive aspects were adequate. The magnetic resonance of the encephalon revealed hypoplasia of the anterior commissure and presence of a temporal cyst on the left side, findings apparently not related to the clinic symptomatology.


Subject(s)
Cognition , Holoprosencephaly/genetics , Language , Mutation/genetics , Psycholinguistics
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