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Relações anatômicas do seio emissário do forame oval e suas implicações clínico-cirúrgicas

Anatomic relations of the emissary sinus of the foramen ovale and its clinic-surgical implications

Resumos

Após dissecar a fossa média da base do crânio de 50 cadáveres de indivíduos brasileiros, leuco e melanodermas, cujas idades variaram de 25 a 80 anos, o autor sistematizou as relações anatômicas do seio emissário do forame oval com os elementos nervosos e durais circunjacentes. Concluiu ser o referido seio emissário um elemento anatômico de considerável importância do ponto de vista clínico-cirúrgico, devendo ser lembrado sobretudo na terapêutica cirúrgica do gânglio trigeminal e do segmento intracraniano dos nervos maxilar e mandibular.


Results of dissection of middle cranial fossa of the skull base of 50 white and no-white brazilian cadavers' whose ages varied form 25 to 80 years are reported. The anatomic relations of the ovale foramen emissary sinus with the surrounding dura mater and nervous components were systematized. It was verified that the lateral walls of the emissary sinus of the foramen ovale are related to: a) with the anterior edge of the trigeminal ganglion in the totality of the examined cases; b) with the middle third of the medial face of the trigeminal ganglion, in 68% of the examined cases; c) with the medial surface of the proximal extreme of the maxilar branch, in the totality of the examined cases; d) with the anterior superior edge and the anterior half of the medial surface of the intracranial segment of the mandibular nerve, including its motor root, in 99% of the examined cases; e) with the lateral face of the intracranial segment of the mandibular nerve, at the foramen ovale, in 9% of the examined cases; f) with the region between the inferior edge of the ophtalmic nerve and the superior edge of the maxilar nerve (angle V1-V2), near its vertex in 45% of the examined cases; g) with the region between the inferior edge of the maxilar nerve and the anterior edge of the mandibular nerve (angle V2-V3), in 100% of the examined cases. The author concludes that the quoted emissary sinus is an important anatomic element at the clinical-surgical point of view. It must be recalled mainly in concern with the surgical therapy of the trigeminal ganglion, and the maxillary and mandibular nerves intracranial segment.


Relações anatômicas do seio emissário do forame oval e suas implicações clínico-cirúrgicas

Anatomic relations of the emissary sinus of the foramen ovale and its clinic-surgical implications

Sylvio Simões

Professor Colaborador do Departamento de Anatomia (Setor Odontologia) do Instituto de Ciências Biométricas da Universidade de São Paulo e Professor Assistente responsável pela Disciplina de Anatomia da Faculdade de Odontologia de São José dos Campos (SP)

RESUMO

Após dissecar a fossa média da base do crânio de 50 cadáveres de indivíduos brasileiros, leuco e melanodermas, cujas idades variaram de 25 a 80 anos, o autor sistematizou as relações anatômicas do seio emissário do forame oval com os elementos nervosos e durais circunjacentes.

Concluiu ser o referido seio emissário um elemento anatômico de considerável importância do ponto de vista clínico-cirúrgico, devendo ser lembrado sobretudo na terapêutica cirúrgica do gânglio trigeminal e do segmento intracraniano dos nervos maxilar e mandibular.

SUMMARY

Results of dissection of middle cranial fossa of the skull base of 50 white and no-white brazilian cadavers' whose ages varied form 25 to 80 years are reported. The anatomic relations of the ovale foramen emissary sinus with the surrounding dura mater and nervous components were systematized. It was verified that the lateral walls of the emissary sinus of the foramen ovale are related to: a) with the anterior edge of the trigeminal ganglion in the totality of the examined cases; b) with the middle third of the medial face of the trigeminal ganglion, in 68% of the examined cases; c) with the medial surface of the proximal extreme of the maxilar branch, in the totality of the examined cases; d) with the anterior superior edge and the anterior half of the medial surface of the intracranial segment of the mandibular nerve, including its motor root, in 99% of the examined cases; e) with the lateral face of the intracranial segment of the mandibular nerve, at the foramen ovale, in 9% of the examined cases; f) with the region between the inferior edge of the ophtalmic nerve and the superior edge of the maxilar nerve (angle V1-V2), near its vertex in 45% of the examined cases; g) with the region between the inferior edge of the maxilar nerve and the anterior edge of the mandibular nerve (angle V2-V3), in 100% of the examined cases.

The author concludes that the quoted emissary sinus is an important anatomic element at the clinical-surgical point of view. It must be recalled mainly in concern with the surgical therapy of the trigeminal ganglion, and the maxillary and mandibular nerves intracranial segment.

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14. HORSLEY, V. — apud HARRIS, W.10

23. SPILLER, W. G. & FRAZIER, C. H. — apud VAN GEHUCHTEN, A.25

Instituto de Ciencias Biomédicas da Univ. de São Paulo — Caixa Postal 4365 — 01000 São Paulo, SP — Brasil.

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Datas de Publicação

  • Publicação nesta coleção
    16 Abr 2013
  • Data do Fascículo
    Mar 1973
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