Anatomic Variations of the Frontal Sinus

 

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Abstract

Introduction: Minimally invasive approaches are increasing in popularity. We have undertaken an anatomic and radiological study of the frontal sinus that is frequently involved in the supercilliary minicraniotomy used to access the parasellar region. Objective: We wanted to evaluate the prevalence and morphological characteristics of the frontal sinus in a certain population sample. Methods: 98 randomly assigned individuals were subjected to CT examinations. The antero-posterior diameter, sagittal diameter, transverse diameter and total volume of the frontal sinus were calculated. Results: The frontal sinus tended to be larger in males than in females with the exception of the transverse diameter (p < 0.10). Conclusion: Knowledge of the anatomic variations of the frontal sinus is important in surgical approaches through the superciliary arc in order to avoid complications such as infections and CSF fistula.

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Dr. J. M. Pondé

Department of Morphology · Division of Anatomy · Escola Bahiana de Medicina · Salvador

Bahia 41830270

Brazil

Fax: +55-71-3451-779

Email: bela@provider.com.br