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Agenesis of the posterior arch of the atlas
Torriani, Martin; Lourenço, José Leonardo Goes.
  • Torriani, Martin; University of Campinas. School of Medicine. Department of Radiology. BR
  • Lourenço, José Leonardo Goes; University of Campinas. School of Medicine. Department of Radiology. BR
Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo ; 57(2): 73-76, mar.-apr. 2002. ilus
Artigo em Inglês | LILACS | ID: lil-307992
RESUMO

PURPOSE:

To illustrate the radiological findings and review the current literature concerning a rare congenital abnormality of the posterior arch of the atlas. CASE REPORT An adult female without neurological symptoms presented with an absent posterior arch of the atlas, examined with plain films and helical computerized tomography. Complete agenesis of the posterior arch of the atlas is a rare entity that can be easily identified by means of plain films. Although it is generally asymptomatic, atlantoaxial instability and neurological deficits may occur because of structural instability. Computerized tomography provides a means of assessing the extent of this abnormality and can help evaluate the integrity of neural structures. Although considered to be rare entities, defects of the posterior arch of the atlas may be discovered as incidental asymptomatic findings in routine cervical radiographs. Familiarity with this abnormality may aid medical professionals in the correct management of these cases
Assuntos
Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Atlas Tipo de estudo: Estudo prognóstico Limite: Adulto / Feminino / Humanos Idioma: Inglês Revista: Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo Assunto da revista: Medicina Ano de publicação: 2002 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: University of Campinas/BR

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Atlas Tipo de estudo: Estudo prognóstico Limite: Adulto / Feminino / Humanos Idioma: Inglês Revista: Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo Assunto da revista: Medicina Ano de publicação: 2002 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: University of Campinas/BR