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Anales de Otorrinolaringología Mexicana

2023, Number 2

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Otorrinolaringología 2023; 68 (2)

Anatomical variants of the pterygoid canal in a third level hospital

Sánchez-Paz LC, Durán-Ortiz M, Pineda-Cásarez F, López-García I, Moreno-Sauceda R, Moscoso-Cabrera FA

Language: Spanish
References: 12
Page: 47-52
PDF size: 327.60 Kb.


ABSTRACT

Objective: To describe the frequency of anatomical variants of the vidian canal in otorhinolaryngology patients at a tertiary level hospital according to tomographically Lee’s classification.
Materials and Methods: A cross-sectional, observational and retrolective study was done through the analysis of tomographic studies of the nose and paranasal sinuses of adult patients from 21 to 90 years of age who attended the ISSSTE, included from July 1st to October 31st, 2022. Types of anatomical variant of the pterygoid canal of a body according to Lee’s classification were evaluated, as well as the presence or not of canal dehiscence and the type of pneumatization of the sphenoid sinus.
Results: There were included 209 patients. Lee’s type II pterygoid canal variant was found with the highest prevalence (41.4%), followed by type III (29.4%) and type I (29.2%). An 8.2% asymmetry between both pterygoid canals and 16% dehiscence of the canal roof were reported.
Conclusions: In the Mexican population we confirmed the following prevalence: Lee type II variant, type III and type I.


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