Otological symptoms are present in subjects with TMD and dentofacial deformities, regardless of the classification of TMD (articular, muscular or mixed). Those with mixed TMD may have higher incidence of complaints about hypoacusis than subjects with muscular TMD. Further studies are needed to investigate the relationship between otological symptoms and the different types of TMD.
Here, we evaluate linguistic skills and neuropsychological performance in a sample of patients with SHH mutations and a holoprosencephaly (HPE)-like phenotype, a minor form of classic HPE. Our findings suggest that patients with SHH mutations and a HPE-like phenotype have normal cognitive ratios and significant language impairment. Imaging evaluation by magnetic resonance imaging (MRI) was normal in three patients and in one there was hypoplasia of the anterior commissure and the presence of a temporal cyst, apparently not related to the clinical findings. ß 2006 Wiley-Liss, Inc.
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.
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